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Finding the Fourth Proportional to 379,486.11, 569,229.12 and 154,952.29

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Solution

The fourth proportional to 379,486.11, 569,229.12 and 154,952.29 is: 232,428.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,486.11 : 569,229.12 = 154,952.29 : x
  2. Step 2: Convert to fraction form
    379,486.11/569,229.12 = 154,952.29/x
  3. Step 3: Cross multiply
    379,486.11x = 569,229.12 × 154,952.29
  4. Step 4: Simplify right side
    379,486.11x = 88,203,356,390.22
  5. Step 5: Solve for x
    x = 88,203,356,390.22/379,486.11
  6. Step 6: Final answer
    x = 232,428.42

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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.