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Finding the Fourth Proportional to 252,326.80, 378,482 and 102,522.80

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Solution

The fourth proportional to 252,326.80, 378,482 and 102,522.80 is: 153,780.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,326.80 : 378,482 = 102,522.80 : x
  2. Step 2: Convert to fraction form
    252,326.80/378,482 = 102,522.80/x
  3. Step 3: Cross multiply
    252,326.80x = 378,482 × 102,522.80
  4. Step 4: Simplify right side
    252,326.80x = 38,803,034,389.60
  5. Step 5: Solve for x
    x = 38,803,034,389.60/252,326.80
  6. Step 6: Final answer
    x = 153,780.87

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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.