Home / 372,209.40-513,623.70-202,439.88

Finding the Fourth Proportional to 372,209.40, 513,623.70 and 202,439.88

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Solution

The fourth proportional to 372,209.40, 513,623.70 and 202,439.88 is: 279,353.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,209.40 : 513,623.70 = 202,439.88 : x
  2. Step 2: Convert to fraction form
    372,209.40/513,623.70 = 202,439.88/x
  3. Step 3: Cross multiply
    372,209.40x = 513,623.70 × 202,439.88
  4. Step 4: Simplify right side
    372,209.40x = 103,977,920,193.16
  5. Step 5: Solve for x
    x = 103,977,920,193.16/372,209.40
  6. Step 6: Final answer
    x = 279,353.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.