Home / 252,156.52-378,290.13-74,677.42

Finding the Fourth Proportional to 252,156.52, 378,290.13 and 74,677.42

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Solution

The fourth proportional to 252,156.52, 378,290.13 and 74,677.42 is: 112,032.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,156.52 : 378,290.13 = 74,677.42 : x
  2. Step 2: Convert to fraction form
    252,156.52/378,290.13 = 74,677.42/x
  3. Step 3: Cross multiply
    252,156.52x = 378,290.13 × 74,677.42
  4. Step 4: Simplify right side
    252,156.52x = 28,249,730,919.86
  5. Step 5: Solve for x
    x = 28,249,730,919.86/252,156.52
  6. Step 6: Final answer
    x = 112,032.52

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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.