Home / 487,701.17-731,614.05-188,267.36

Finding the Fourth Proportional to 487,701.17, 731,614.05 and 188,267.36

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Solution

The fourth proportional to 487,701.17, 731,614.05 and 188,267.36 is: 282,425.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,701.17 : 731,614.05 = 188,267.36 : x
  2. Step 2: Convert to fraction form
    487,701.17/731,614.05 = 188,267.36/x
  3. Step 3: Cross multiply
    487,701.17x = 731,614.05 × 188,267.36
  4. Step 4: Simplify right side
    487,701.17x = 137,739,045,732.41
  5. Step 5: Solve for x
    x = 137,739,045,732.41/487,701.17
  6. Step 6: Final answer
    x = 282,425.09

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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.