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Finding the Fourth Proportional to 276,888.66, 415,363.98 and 87,376.01

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Solution

The fourth proportional to 276,888.66, 415,363.98 and 87,376.01 is: 131,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,888.66 : 415,363.98 = 87,376.01 : x
  2. Step 2: Convert to fraction form
    276,888.66/415,363.98 = 87,376.01/x
  3. Step 3: Cross multiply
    276,888.66x = 415,363.98 × 87,376.01
  4. Step 4: Simplify right side
    276,888.66x = 36,292,845,193.30
  5. Step 5: Solve for x
    x = 36,292,845,193.30/276,888.66
  6. Step 6: Final answer
    x = 131,073.79

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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.