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Finding the Fourth Proportional to 618,915.46, 928,273.53 and 169,531.22

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Solution

The fourth proportional to 618,915.46, 928,273.53 and 169,531.22 is: 254,269.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,915.46 : 928,273.53 = 169,531.22 : x
  2. Step 2: Convert to fraction form
    618,915.46/928,273.53 = 169,531.22/x
  3. Step 3: Cross multiply
    618,915.46x = 928,273.53 × 169,531.22
  4. Step 4: Simplify right side
    618,915.46x = 157,371,346,991.03
  5. Step 5: Solve for x
    x = 157,371,346,991.03/618,915.46
  6. Step 6: Final answer
    x = 254,269.54

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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.