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Finding the Fourth Proportional to 278,322.53, 417,551.79 and 88,782.94

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Solution

The fourth proportional to 278,322.53, 417,551.79 and 88,782.94 is: 133,196.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,322.53 : 417,551.79 = 88,782.94 : x
  2. Step 2: Convert to fraction form
    278,322.53/417,551.79 = 88,782.94/x
  3. Step 3: Cross multiply
    278,322.53x = 417,551.79 × 88,782.94
  4. Step 4: Simplify right side
    278,322.53x = 37,071,474,024.61
  5. Step 5: Solve for x
    x = 37,071,474,024.61/278,322.53
  6. Step 6: Final answer
    x = 133,196.09

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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.