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Finding the Fourth Proportional to 231,350.28, 347,025.30 and 65,138.28

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Solution

The fourth proportional to 231,350.28, 347,025.30 and 65,138.28 is: 97,707.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,350.28 : 347,025.30 = 65,138.28 : x
  2. Step 2: Convert to fraction form
    231,350.28/347,025.30 = 65,138.28/x
  3. Step 3: Cross multiply
    231,350.28x = 347,025.30 × 65,138.28
  4. Step 4: Simplify right side
    231,350.28x = 22,604,631,158.48
  5. Step 5: Solve for x
    x = 22,604,631,158.48/231,350.28
  6. Step 6: Final answer
    x = 97,707.39

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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.