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Finding the Fourth Proportional to 344,381.70, 475,255.53 and 189,331.10

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Solution

The fourth proportional to 344,381.70, 475,255.53 and 189,331.10 is: 261,281.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,381.70 : 475,255.53 = 189,331.10 : x
  2. Step 2: Convert to fraction form
    344,381.70/475,255.53 = 189,331.10/x
  3. Step 3: Cross multiply
    344,381.70x = 475,255.53 × 189,331.10
  4. Step 4: Simplify right side
    344,381.70x = 89,980,652,275.98
  5. Step 5: Solve for x
    x = 89,980,652,275.98/344,381.70
  6. Step 6: Final answer
    x = 261,281.75

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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.