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Finding the Fourth Proportional to 259,747.20, 389,620.80 and 240,501.60

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Solution

The fourth proportional to 259,747.20, 389,620.80 and 240,501.60 is: 360,752.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,747.20 : 389,620.80 = 240,501.60 : x
  2. Step 2: Convert to fraction form
    259,747.20/389,620.80 = 240,501.60/x
  3. Step 3: Cross multiply
    259,747.20x = 389,620.80 × 240,501.60
  4. Step 4: Simplify right side
    259,747.20x = 93,704,425,793.28
  5. Step 5: Solve for x
    x = 93,704,425,793.28/259,747.20
  6. Step 6: Final answer
    x = 360,752.40

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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.