Home / 372,380.80-513,877.20-202,615.36

Finding the Fourth Proportional to 372,380.80, 513,877.20 and 202,615.36

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Solution

The fourth proportional to 372,380.80, 513,877.20 and 202,615.36 is: 279,604.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,380.80 : 513,877.20 = 202,615.36 : x
  2. Step 2: Convert to fraction form
    372,380.80/513,877.20 = 202,615.36/x
  3. Step 3: Cross multiply
    372,380.80x = 513,877.20 × 202,615.36
  4. Step 4: Simplify right side
    372,380.80x = 104,119,413,873.79
  5. Step 5: Solve for x
    x = 104,119,413,873.79/372,380.80
  6. Step 6: Final answer
    x = 279,604.68

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1.5x scale

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.