Home / 331,549.20-457,520.40-180,646.20

Finding the Fourth Proportional to 331,549.20, 457,520.40 and 180,646.20

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Solution

The fourth proportional to 331,549.20, 457,520.40 and 180,646.20 is: 249,282.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,549.20 : 457,520.40 = 180,646.20 : x
  2. Step 2: Convert to fraction form
    331,549.20/457,520.40 = 180,646.20/x
  3. Step 3: Cross multiply
    331,549.20x = 457,520.40 × 180,646.20
  4. Step 4: Simplify right side
    331,549.20x = 82,649,321,682.48
  5. Step 5: Solve for x
    x = 82,649,321,682.48/331,549.20
  6. Step 6: Final answer
    x = 249,282.22

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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.