Home / 487,928.79-731,711.16-167,990.29

Finding the Fourth Proportional to 487,928.79, 731,711.16 and 167,990.29

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Solution

The fourth proportional to 487,928.79, 731,711.16 and 167,990.29 is: 251,922.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,928.79 : 731,711.16 = 167,990.29 : x
  2. Step 2: Convert to fraction form
    487,928.79/731,711.16 = 167,990.29/x
  3. Step 3: Cross multiply
    487,928.79x = 731,711.16 × 167,990.29
  4. Step 4: Simplify right side
    487,928.79x = 122,920,368,135.36
  5. Step 5: Solve for x
    x = 122,920,368,135.36/487,928.79
  6. Step 6: Final answer
    x = 251,922.76

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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.