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Finding the Fourth Proportional to 381,323.70, 571,985.55 and 301,607.55

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Solution

The fourth proportional to 381,323.70, 571,985.55 and 301,607.55 is: 452,411.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,323.70 : 571,985.55 = 301,607.55 : x
  2. Step 2: Convert to fraction form
    381,323.70/571,985.55 = 301,607.55/x
  3. Step 3: Cross multiply
    381,323.70x = 571,985.55 × 301,607.55
  4. Step 4: Simplify right side
    381,323.70x = 172,515,160,370.90
  5. Step 5: Solve for x
    x = 172,515,160,370.90/381,323.70
  6. Step 6: Final answer
    x = 452,411.33

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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.