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Finding the Fourth Proportional to 487,454.14, 730,972.09 and 167,638.20

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Solution

The fourth proportional to 487,454.14, 730,972.09 and 167,638.20 is: 251,385.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,454.14 : 730,972.09 = 167,638.20 : x
  2. Step 2: Convert to fraction form
    487,454.14/730,972.09 = 167,638.20/x
  3. Step 3: Cross multiply
    487,454.14x = 730,972.09 × 167,638.20
  4. Step 4: Simplify right side
    487,454.14x = 122,538,845,417.84
  5. Step 5: Solve for x
    x = 122,538,845,417.84/487,454.14
  6. Step 6: Final answer
    x = 251,385.38

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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.