Home / 385,328.90-577,849.97-132,538.43

Finding the Fourth Proportional to 385,328.90, 577,849.97 and 132,538.43

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Solution

The fourth proportional to 385,328.90, 577,849.97 and 132,538.43 is: 198,758.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,328.90 : 577,849.97 = 132,538.43 : x
  2. Step 2: Convert to fraction form
    385,328.90/577,849.97 = 132,538.43/x
  3. Step 3: Cross multiply
    385,328.90x = 577,849.97 × 132,538.43
  4. Step 4: Simplify right side
    385,328.90x = 76,587,324,247.41
  5. Step 5: Solve for x
    x = 76,587,324,247.41/385,328.90
  6. Step 6: Final answer
    x = 198,758.32

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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.