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Finding the Fourth Proportional to 293,389.80, 440,084.70 and 71,773.80

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Solution

The fourth proportional to 293,389.80, 440,084.70 and 71,773.80 is: 107,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,389.80 : 440,084.70 = 71,773.80 : x
  2. Step 2: Convert to fraction form
    293,389.80/440,084.70 = 71,773.80/x
  3. Step 3: Cross multiply
    293,389.80x = 440,084.70 × 71,773.80
  4. Step 4: Simplify right side
    293,389.80x = 31,586,551,240.86
  5. Step 5: Solve for x
    x = 31,586,551,240.86/293,389.80
  6. Step 6: Final answer
    x = 107,660.70

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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.