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Finding the Fourth Proportional to 251,251.10, 376,801.68 and 82,740.32

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Solution

The fourth proportional to 251,251.10, 376,801.68 and 82,740.32 is: 124,085.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,251.10 : 376,801.68 = 82,740.32 : x
  2. Step 2: Convert to fraction form
    251,251.10/376,801.68 = 82,740.32/x
  3. Step 3: Cross multiply
    251,251.10x = 376,801.68 × 82,740.32
  4. Step 4: Simplify right side
    251,251.10x = 31,176,691,579.74
  5. Step 5: Solve for x
    x = 31,176,691,579.74/251,251.10
  6. Step 6: Final answer
    x = 124,085.79

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1.5x scale

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.