Home / 321,370.72-443,490.82-176,176.24

Finding the Fourth Proportional to 321,370.72, 443,490.82 and 176,176.24

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Solution

The fourth proportional to 321,370.72, 443,490.82 and 176,176.24 is: 243,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,370.72 : 443,490.82 = 176,176.24 : x
  2. Step 2: Convert to fraction form
    321,370.72/443,490.82 = 176,176.24/x
  3. Step 3: Cross multiply
    321,370.72x = 443,490.82 × 176,176.24
  4. Step 4: Simplify right side
    321,370.72x = 78,132,545,142.12
  5. Step 5: Solve for x
    x = 78,132,545,142.12/321,370.72
  6. Step 6: Final answer
    x = 243,122.79

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1.5x scale

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.