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Finding the Fourth Proportional to 259,902.71, 358,627.56 and 145,167.21

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Solution

The fourth proportional to 259,902.71, 358,627.56 and 145,167.21 is: 200,309.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,902.71 : 358,627.56 = 145,167.21 : x
  2. Step 2: Convert to fraction form
    259,902.71/358,627.56 = 145,167.21/x
  3. Step 3: Cross multiply
    259,902.71x = 358,627.56 × 145,167.21
  4. Step 4: Simplify right side
    259,902.71x = 52,060,962,314.31
  5. Step 5: Solve for x
    x = 52,060,962,314.31/259,902.71
  6. Step 6: Final answer
    x = 200,309.43

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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.