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Finding the Fourth Proportional to 487,761.45, 731,568.30 and 132,803.43

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Solution

The fourth proportional to 487,761.45, 731,568.30 and 132,803.43 is: 199,185.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,761.45 : 731,568.30 = 132,803.43 : x
  2. Step 2: Convert to fraction form
    487,761.45/731,568.30 = 132,803.43/x
  3. Step 3: Cross multiply
    487,761.45x = 731,568.30 × 132,803.43
  4. Step 4: Simplify right side
    487,761.45x = 97,154,779,519.27
  5. Step 5: Solve for x
    x = 97,154,779,519.27/487,761.45
  6. Step 6: Final answer
    x = 199,185.03

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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.