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Finding the Fourth Proportional to 381,341.66, 571,788.18 and 144,700.98

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Solution

The fourth proportional to 381,341.66, 571,788.18 and 144,700.98 is: 216,966.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,341.66 : 571,788.18 = 144,700.98 : x
  2. Step 2: Convert to fraction form
    381,341.66/571,788.18 = 144,700.98/x
  3. Step 3: Cross multiply
    381,341.66x = 571,788.18 × 144,700.98
  4. Step 4: Simplify right side
    381,341.66x = 82,738,309,998.42
  5. Step 5: Solve for x
    x = 82,738,309,998.42/381,341.66
  6. Step 6: Final answer
    x = 216,966.36

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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.