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Finding the Fourth Proportional to 321,587.87, 443,720.28 and 185,592.92

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Solution

The fourth proportional to 321,587.87, 443,720.28 and 185,592.92 is: 256,077.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,587.87 : 443,720.28 = 185,592.92 : x
  2. Step 2: Convert to fraction form
    321,587.87/443,720.28 = 185,592.92/x
  3. Step 3: Cross multiply
    321,587.87x = 443,720.28 × 185,592.92
  4. Step 4: Simplify right side
    321,587.87x = 82,351,342,357.76
  5. Step 5: Solve for x
    x = 82,351,342,357.76/321,587.87
  6. Step 6: Final answer
    x = 256,077.26

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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.