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Finding the Fourth Proportional to 303,314.35, 455,026.20 and 125,839.30

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Solution

The fourth proportional to 303,314.35, 455,026.20 and 125,839.30 is: 188,781.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,314.35 : 455,026.20 = 125,839.30 : x
  2. Step 2: Convert to fraction form
    303,314.35/455,026.20 = 125,839.30/x
  3. Step 3: Cross multiply
    303,314.35x = 455,026.20 × 125,839.30
  4. Step 4: Simplify right side
    303,314.35x = 57,260,178,489.66
  5. Step 5: Solve for x
    x = 57,260,178,489.66/303,314.35
  6. Step 6: Final answer
    x = 188,781.63

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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.