Home / 385,325.28-577,838.16-132,557.76

Finding the Fourth Proportional to 385,325.28, 577,838.16 and 132,557.76

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Solution

The fourth proportional to 385,325.28, 577,838.16 and 132,557.76 is: 198,785.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,325.28 : 577,838.16 = 132,557.76 : x
  2. Step 2: Convert to fraction form
    385,325.28/577,838.16 = 132,557.76/x
  3. Step 3: Cross multiply
    385,325.28x = 577,838.16 × 132,557.76
  4. Step 4: Simplify right side
    385,325.28x = 76,596,932,132.12
  5. Step 5: Solve for x
    x = 76,596,932,132.12/385,325.28
  6. Step 6: Final answer
    x = 198,785.12

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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.