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Finding the Fourth Proportional to 487,417.90, 730,815.37 and 234,194.48

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Solution

The fourth proportional to 487,417.90, 730,815.37 and 234,194.48 is: 351,142.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,417.90 : 730,815.37 = 234,194.48 : x
  2. Step 2: Convert to fraction form
    487,417.90/730,815.37 = 234,194.48/x
  3. Step 3: Cross multiply
    487,417.90x = 730,815.37 × 234,194.48
  4. Step 4: Simplify right side
    487,417.90x = 171,152,925,553.16
  5. Step 5: Solve for x
    x = 171,152,925,553.16/487,417.90
  6. Step 6: Final answer
    x = 351,142.06

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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.