Home / 347,727.80-521,591.70-137,257.40

Finding the Fourth Proportional to 347,727.80, 521,591.70 and 137,257.40

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Solution

The fourth proportional to 347,727.80, 521,591.70 and 137,257.40 is: 205,886.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,727.80 : 521,591.70 = 137,257.40 : x
  2. Step 2: Convert to fraction form
    347,727.80/521,591.70 = 137,257.40/x
  3. Step 3: Cross multiply
    347,727.80x = 521,591.70 × 137,257.40
  4. Step 4: Simplify right side
    347,727.80x = 71,592,320,603.58
  5. Step 5: Solve for x
    x = 71,592,320,603.58/347,727.80
  6. Step 6: Final answer
    x = 205,886.10

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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.