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Finding the Fourth Proportional to 292,487.76, 438,895.60 and 159,377.28

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Solution

The fourth proportional to 292,487.76, 438,895.60 and 159,377.28 is: 239,155.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,487.76 : 438,895.60 = 159,377.28 : x
  2. Step 2: Convert to fraction form
    292,487.76/438,895.60 = 159,377.28/x
  3. Step 3: Cross multiply
    292,487.76x = 438,895.60 × 159,377.28
  4. Step 4: Simplify right side
    292,487.76x = 69,949,986,931.97
  5. Step 5: Solve for x
    x = 69,949,986,931.97/292,487.76
  6. Step 6: Final answer
    x = 239,155.26

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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.