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Finding the Fourth Proportional to 502,989.90, 754,266.15 and 165,900.30

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Solution

The fourth proportional to 502,989.90, 754,266.15 and 165,900.30 is: 248,778.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,989.90 : 754,266.15 = 165,900.30 : x
  2. Step 2: Convert to fraction form
    502,989.90/754,266.15 = 165,900.30/x
  3. Step 3: Cross multiply
    502,989.90x = 754,266.15 × 165,900.30
  4. Step 4: Simplify right side
    502,989.90x = 125,132,980,564.85
  5. Step 5: Solve for x
    x = 125,132,980,564.85/502,989.90
  6. Step 6: Final answer
    x = 248,778.32

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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.