Home / 360,142.12-496,403.40-255,401.02

Finding the Fourth Proportional to 360,142.12, 496,403.40 and 255,401.02

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Solution

The fourth proportional to 360,142.12, 496,403.40 and 255,401.02 is: 352,033.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,142.12 : 496,403.40 = 255,401.02 : x
  2. Step 2: Convert to fraction form
    360,142.12/496,403.40 = 255,401.02/x
  3. Step 3: Cross multiply
    360,142.12x = 496,403.40 × 255,401.02
  4. Step 4: Simplify right side
    360,142.12x = 126,781,934,691.47
  5. Step 5: Solve for x
    x = 126,781,934,691.47/360,142.12
  6. Step 6: Final answer
    x = 352,033.07

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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.