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Finding the Fourth Proportional to 220,167.64, 303,834 and 124,671.88

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Solution

The fourth proportional to 220,167.64, 303,834 and 124,671.88 is: 172,048.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,167.64 : 303,834 = 124,671.88 : x
  2. Step 2: Convert to fraction form
    220,167.64/303,834 = 124,671.88/x
  3. Step 3: Cross multiply
    220,167.64x = 303,834 × 124,671.88
  4. Step 4: Simplify right side
    220,167.64x = 37,879,555,987.92
  5. Step 5: Solve for x
    x = 37,879,555,987.92/220,167.64
  6. Step 6: Final answer
    x = 172,048.70

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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.