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Finding the Fourth Proportional to 510,808.66, 766,256.92 and 131,725.96

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Solution

The fourth proportional to 510,808.66, 766,256.92 and 131,725.96 is: 197,600.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,808.66 : 766,256.92 = 131,725.96 : x
  2. Step 2: Convert to fraction form
    510,808.66/766,256.92 = 131,725.96/x
  3. Step 3: Cross multiply
    510,808.66x = 766,256.92 × 131,725.96
  4. Step 4: Simplify right side
    510,808.66x = 100,935,928,393.64
  5. Step 5: Solve for x
    x = 100,935,928,393.64/510,808.66
  6. Step 6: Final answer
    x = 197,600.27

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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.