Home / 278,209.64-417,347.04-88,603.40

Finding the Fourth Proportional to 278,209.64, 417,347.04 and 88,603.40

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Solution

The fourth proportional to 278,209.64, 417,347.04 and 88,603.40 is: 132,915.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,209.64 : 417,347.04 = 88,603.40 : x
  2. Step 2: Convert to fraction form
    278,209.64/417,347.04 = 88,603.40/x
  3. Step 3: Cross multiply
    278,209.64x = 417,347.04 × 88,603.40
  4. Step 4: Simplify right side
    278,209.64x = 36,978,366,723.94
  5. Step 5: Solve for x
    x = 36,978,366,723.94/278,209.64
  6. Step 6: Final answer
    x = 132,915.48

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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.