Home / 345,861.28-477,395.13-202,667.86

Finding the Fourth Proportional to 345,861.28, 477,395.13 and 202,667.86

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Solution

The fourth proportional to 345,861.28, 477,395.13 and 202,667.86 is: 279,744.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,861.28 : 477,395.13 = 202,667.86 : x
  2. Step 2: Convert to fraction form
    345,861.28/477,395.13 = 202,667.86/x
  3. Step 3: Cross multiply
    345,861.28x = 477,395.13 × 202,667.86
  4. Step 4: Simplify right side
    345,861.28x = 96,752,649,371.52
  5. Step 5: Solve for x
    x = 96,752,649,371.52/345,861.28
  6. Step 6: Final answer
    x = 279,744.09

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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.