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Finding the Fourth Proportional to 207,755.79, 286,836.42 and 130,337.57

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Solution

The fourth proportional to 207,755.79, 286,836.42 and 130,337.57 is: 179,949.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,755.79 : 286,836.42 = 130,337.57 : x
  2. Step 2: Convert to fraction form
    207,755.79/286,836.42 = 130,337.57/x
  3. Step 3: Cross multiply
    207,755.79x = 286,836.42 × 130,337.57
  4. Step 4: Simplify right side
    207,755.79x = 37,385,563,176.16
  5. Step 5: Solve for x
    x = 37,385,563,176.16/207,755.79
  6. Step 6: Final answer
    x = 179,949.56

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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.