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Finding the Fourth Proportional to 372,872.80, 559,309.20 and 123,522.40

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Solution

The fourth proportional to 372,872.80, 559,309.20 and 123,522.40 is: 185,283.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,872.80 : 559,309.20 = 123,522.40 : x
  2. Step 2: Convert to fraction form
    372,872.80/559,309.20 = 123,522.40/x
  3. Step 3: Cross multiply
    372,872.80x = 559,309.20 × 123,522.40
  4. Step 4: Simplify right side
    372,872.80x = 69,087,214,726.08
  5. Step 5: Solve for x
    x = 69,087,214,726.08/372,872.80
  6. Step 6: Final answer
    x = 185,283.60

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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.