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Finding the Fourth Proportional to 231,333.40, 324,129.20 and 231,333.40

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Solution

The fourth proportional to 231,333.40, 324,129.20 and 231,333.40 is: 324,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,333.40 : 324,129.20 = 231,333.40 : x
  2. Step 2: Convert to fraction form
    231,333.40/324,129.20 = 231,333.40/x
  3. Step 3: Cross multiply
    231,333.40x = 324,129.20 × 231,333.40
  4. Step 4: Simplify right side
    231,333.40x = 74,981,909,875.28
  5. Step 5: Solve for x
    x = 74,981,909,875.28/231,333.40
  6. Step 6: Final answer
    x = 324,129.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.