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Finding the Fourth Proportional to 262,295.68, 393,440.96 and 75,306.88

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Solution

The fourth proportional to 262,295.68, 393,440.96 and 75,306.88 is: 112,959.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,295.68 : 393,440.96 = 75,306.88 : x
  2. Step 2: Convert to fraction form
    262,295.68/393,440.96 = 75,306.88/x
  3. Step 3: Cross multiply
    262,295.68x = 393,440.96 × 75,306.88
  4. Step 4: Simplify right side
    262,295.68x = 29,628,811,161.80
  5. Step 5: Solve for x
    x = 29,628,811,161.80/262,295.68
  6. Step 6: Final answer
    x = 112,959.59

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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.