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Finding the Fourth Proportional to 168,836.40, 253,108.80 and 151,121.70

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Solution

The fourth proportional to 168,836.40, 253,108.80 and 151,121.70 is: 226,552.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,836.40 : 253,108.80 = 151,121.70 : x
  2. Step 2: Convert to fraction form
    168,836.40/253,108.80 = 151,121.70/x
  3. Step 3: Cross multiply
    168,836.40x = 253,108.80 × 151,121.70
  4. Step 4: Simplify right side
    168,836.40x = 38,250,232,140.96
  5. Step 5: Solve for x
    x = 38,250,232,140.96/168,836.40
  6. Step 6: Final answer
    x = 226,552.05

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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.