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Finding the Fourth Proportional to 278,122.37, 417,162.57 and 88,575.08

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Solution

The fourth proportional to 278,122.37, 417,162.57 and 88,575.08 is: 132,855.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,122.37 : 417,162.57 = 88,575.08 : x
  2. Step 2: Convert to fraction form
    278,122.37/417,162.57 = 88,575.08/x
  3. Step 3: Cross multiply
    278,122.37x = 417,162.57 × 88,575.08
  4. Step 4: Simplify right side
    278,122.37x = 36,950,205,924.94
  5. Step 5: Solve for x
    x = 36,950,205,924.94/278,122.37
  6. Step 6: Final answer
    x = 132,855.93

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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.