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Finding the Fourth Proportional to 251,215.60, 376,781.28 and 82,737.76

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Solution

The fourth proportional to 251,215.60, 376,781.28 and 82,737.76 is: 124,092.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,215.60 : 376,781.28 = 82,737.76 : x
  2. Step 2: Convert to fraction form
    251,215.60/376,781.28 = 82,737.76/x
  3. Step 3: Cross multiply
    251,215.60x = 376,781.28 × 82,737.76
  4. Step 4: Simplify right side
    251,215.60x = 31,174,039,117.13
  5. Step 5: Solve for x
    x = 31,174,039,117.13/251,215.60
  6. Step 6: Final answer
    x = 124,092.77

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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.