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Finding the Fourth Proportional to 185,479.74, 278,215.29 and 101,321.82

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Solution

The fourth proportional to 185,479.74, 278,215.29 and 101,321.82 is: 151,980.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,479.74 : 278,215.29 = 101,321.82 : x
  2. Step 2: Convert to fraction form
    185,479.74/278,215.29 = 101,321.82/x
  3. Step 3: Cross multiply
    185,479.74x = 278,215.29 × 101,321.82
  4. Step 4: Simplify right side
    185,479.74x = 28,189,279,534.63
  5. Step 5: Solve for x
    x = 28,189,279,534.63/185,479.74
  6. Step 6: Final answer
    x = 151,980.37

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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.