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Finding the Fourth Proportional to 381,201.48, 571,080.48 and 254,459.55

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Solution

The fourth proportional to 381,201.48, 571,080.48 and 254,459.55 is: 381,207.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,201.48 : 571,080.48 = 254,459.55 : x
  2. Step 2: Convert to fraction form
    381,201.48/571,080.48 = 254,459.55/x
  3. Step 3: Cross multiply
    381,201.48x = 571,080.48 × 254,459.55
  4. Step 4: Simplify right side
    381,201.48x = 145,316,881,954.58
  5. Step 5: Solve for x
    x = 145,316,881,954.58/381,201.48
  6. Step 6: Final answer
    x = 381,207.55

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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.