Home / 279,095.38-385,184.13-156,621.52

Finding the Fourth Proportional to 279,095.38, 385,184.13 and 156,621.52

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Solution

The fourth proportional to 279,095.38, 385,184.13 and 156,621.52 is: 216,155.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,095.38 : 385,184.13 = 156,621.52 : x
  2. Step 2: Convert to fraction form
    279,095.38/385,184.13 = 156,621.52/x
  3. Step 3: Cross multiply
    279,095.38x = 385,184.13 × 156,621.52
  4. Step 4: Simplify right side
    279,095.38x = 60,328,123,920.48
  5. Step 5: Solve for x
    x = 60,328,123,920.48/279,095.38
  6. Step 6: Final answer
    x = 216,155.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.