Home / 321,944.10-482,916.15-85,323.30

Finding the Fourth Proportional to 321,944.10, 482,916.15 and 85,323.30

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Solution

The fourth proportional to 321,944.10, 482,916.15 and 85,323.30 is: 127,984.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,944.10 : 482,916.15 = 85,323.30 : x
  2. Step 2: Convert to fraction form
    321,944.10/482,916.15 = 85,323.30/x
  3. Step 3: Cross multiply
    321,944.10x = 482,916.15 × 85,323.30
  4. Step 4: Simplify right side
    321,944.10x = 41,203,999,541.30
  5. Step 5: Solve for x
    x = 41,203,999,541.30/321,944.10
  6. Step 6: Final answer
    x = 127,984.95

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Similar ratio
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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.