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Finding the Fourth Proportional to 381,028, 571,669.98 and 267,294.28

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Solution

The fourth proportional to 381,028, 571,669.98 and 267,294.28 is: 401,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,028 : 571,669.98 = 267,294.28 : x
  2. Step 2: Convert to fraction form
    381,028/571,669.98 = 267,294.28/x
  3. Step 3: Cross multiply
    381,028x = 571,669.98 × 267,294.28
  4. Step 4: Simplify right side
    381,028x = 152,804,115,701.71
  5. Step 5: Solve for x
    x = 152,804,115,701.71/381,028
  6. Step 6: Final answer
    x = 401,031.20

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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.