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Finding the Fourth Proportional to 311,236.34, 466,825.71 and 86,600.18

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Solution

The fourth proportional to 311,236.34, 466,825.71 and 86,600.18 is: 129,892.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,236.34 : 466,825.71 = 86,600.18 : x
  2. Step 2: Convert to fraction form
    311,236.34/466,825.71 = 86,600.18/x
  3. Step 3: Cross multiply
    311,236.34x = 466,825.71 × 86,600.18
  4. Step 4: Simplify right side
    311,236.34x = 40,427,190,514.63
  5. Step 5: Solve for x
    x = 40,427,190,514.63/311,236.34
  6. Step 6: Final answer
    x = 129,892.26

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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.