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Finding the Fourth Proportional to 268,379.28, 370,371.78 and 147,529.86

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Solution

The fourth proportional to 268,379.28, 370,371.78 and 147,529.86 is: 203,595.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,379.28 : 370,371.78 = 147,529.86 : x
  2. Step 2: Convert to fraction form
    268,379.28/370,371.78 = 147,529.86/x
  3. Step 3: Cross multiply
    268,379.28x = 370,371.78 × 147,529.86
  4. Step 4: Simplify right side
    268,379.28x = 54,640,896,851.35
  5. Step 5: Solve for x
    x = 54,640,896,851.35/268,379.28
  6. Step 6: Final answer
    x = 203,595.81

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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.