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Finding the Fourth Proportional to 253,468.32, 378,386.45 and 235,753.62

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Solution

The fourth proportional to 253,468.32, 378,386.45 and 235,753.62 is: 351,941.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,468.32 : 378,386.45 = 235,753.62 : x
  2. Step 2: Convert to fraction form
    253,468.32/378,386.45 = 235,753.62/x
  3. Step 3: Cross multiply
    253,468.32x = 378,386.45 × 235,753.62
  4. Step 4: Simplify right side
    253,468.32x = 89,205,974,167.68
  5. Step 5: Solve for x
    x = 89,205,974,167.68/253,468.32
  6. Step 6: Final answer
    x = 351,941.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.