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Finding the Fourth Proportional to 278,138.09, 417,069.09 and 88,573.73

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Solution

The fourth proportional to 278,138.09, 417,069.09 and 88,573.73 is: 132,816.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,138.09 : 417,069.09 = 88,573.73 : x
  2. Step 2: Convert to fraction form
    278,138.09/417,069.09 = 88,573.73/x
  3. Step 3: Cross multiply
    278,138.09x = 417,069.09 × 88,573.73
  4. Step 4: Simplify right side
    278,138.09x = 36,941,364,526.14
  5. Step 5: Solve for x
    x = 36,941,364,526.14/278,138.09
  6. Step 6: Final answer
    x = 132,816.64

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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.