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Finding the Fourth Proportional to 290,372.59, 399,787.27 and 247,760.11

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Solution

The fourth proportional to 290,372.59, 399,787.27 and 247,760.11 is: 341,118.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,372.59 : 399,787.27 = 247,760.11 : x
  2. Step 2: Convert to fraction form
    290,372.59/399,787.27 = 247,760.11/x
  3. Step 3: Cross multiply
    290,372.59x = 399,787.27 × 247,760.11
  4. Step 4: Simplify right side
    290,372.59x = 99,051,337,991.80
  5. Step 5: Solve for x
    x = 99,051,337,991.80/290,372.59
  6. Step 6: Final answer
    x = 341,118.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.