Home / 487,929.17-731,711.72-167,990.66

Finding the Fourth Proportional to 487,929.17, 731,711.72 and 167,990.66

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Solution

The fourth proportional to 487,929.17, 731,711.72 and 167,990.66 is: 251,923.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,929.17 : 731,711.72 = 167,990.66 : x
  2. Step 2: Convert to fraction form
    487,929.17/731,711.72 = 167,990.66/x
  3. Step 3: Cross multiply
    487,929.17x = 731,711.72 × 167,990.66
  4. Step 4: Simplify right side
    487,929.17x = 122,920,730,274.02
  5. Step 5: Solve for x
    x = 122,920,730,274.02/487,929.17
  6. Step 6: Final answer
    x = 251,923.31

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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.