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Finding the Fourth Proportional to 381,750.60, 572,859.90 and 157,218.60

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Solution

The fourth proportional to 381,750.60, 572,859.90 and 157,218.60 is: 235,924.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,750.60 : 572,859.90 = 157,218.60 : x
  2. Step 2: Convert to fraction form
    381,750.60/572,859.90 = 157,218.60/x
  3. Step 3: Cross multiply
    381,750.60x = 572,859.90 × 157,218.60
  4. Step 4: Simplify right side
    381,750.60x = 90,064,231,474.14
  5. Step 5: Solve for x
    x = 90,064,231,474.14/381,750.60
  6. Step 6: Final answer
    x = 235,924.27

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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.