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Finding the Fourth Proportional to 664,321.80, 996,288.30 and 237,808.20

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Solution

The fourth proportional to 664,321.80, 996,288.30 and 237,808.20 is: 356,642.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,321.80 : 996,288.30 = 237,808.20 : x
  2. Step 2: Convert to fraction form
    664,321.80/996,288.30 = 237,808.20/x
  3. Step 3: Cross multiply
    664,321.80x = 996,288.30 × 237,808.20
  4. Step 4: Simplify right side
    664,321.80x = 236,925,527,304.06
  5. Step 5: Solve for x
    x = 236,925,527,304.06/664,321.80
  6. Step 6: Final answer
    x = 356,642.71

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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.