Home / 278,424.12-417,704.09-88,884.52

Finding the Fourth Proportional to 278,424.12, 417,704.09 and 88,884.52

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Solution

The fourth proportional to 278,424.12, 417,704.09 and 88,884.52 is: 133,348.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,424.12 : 417,704.09 = 88,884.52 : x
  2. Step 2: Convert to fraction form
    278,424.12/417,704.09 = 88,884.52/x
  3. Step 3: Cross multiply
    278,424.12x = 417,704.09 × 88,884.52
  4. Step 4: Simplify right side
    278,424.12x = 37,127,427,541.69
  5. Step 5: Solve for x
    x = 37,127,427,541.69/278,424.12
  6. Step 6: Final answer
    x = 133,348.46

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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.