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Finding the Fourth Proportional to 501,143.40, 751,715.10 and 235,422.90

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Solution

The fourth proportional to 501,143.40, 751,715.10 and 235,422.90 is: 353,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,143.40 : 751,715.10 = 235,422.90 : x
  2. Step 2: Convert to fraction form
    501,143.40/751,715.10 = 235,422.90/x
  3. Step 3: Cross multiply
    501,143.40x = 751,715.10 × 235,422.90
  4. Step 4: Simplify right side
    501,143.40x = 176,970,948,815.79
  5. Step 5: Solve for x
    x = 176,970,948,815.79/501,143.40
  6. Step 6: Final answer
    x = 353,134.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.