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Finding the Fourth Proportional to 262,407.20, 393,610.80 and 240,634.40

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Solution

The fourth proportional to 262,407.20, 393,610.80 and 240,634.40 is: 360,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,407.20 : 393,610.80 = 240,634.40 : x
  2. Step 2: Convert to fraction form
    262,407.20/393,610.80 = 240,634.40/x
  3. Step 3: Cross multiply
    262,407.20x = 393,610.80 × 240,634.40
  4. Step 4: Simplify right side
    262,407.20x = 94,716,298,691.52
  5. Step 5: Solve for x
    x = 94,716,298,691.52/262,407.20
  6. Step 6: Final answer
    x = 360,951.60

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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.