Home / 321,633.24-443,490.15-205,191.28

Finding the Fourth Proportional to 321,633.24, 443,490.15 and 205,191.28

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Solution

The fourth proportional to 321,633.24, 443,490.15 and 205,191.28 is: 282,931.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,633.24 : 443,490.15 = 205,191.28 : x
  2. Step 2: Convert to fraction form
    321,633.24/443,490.15 = 205,191.28/x
  3. Step 3: Cross multiply
    321,633.24x = 443,490.15 × 205,191.28
  4. Step 4: Simplify right side
    321,633.24x = 91,000,311,545.89
  5. Step 5: Solve for x
    x = 91,000,311,545.89/321,633.24
  6. Step 6: Final answer
    x = 282,931.92

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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.