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Finding the Fourth Proportional to 215,671.83, 297,628.30 and 125,081.50

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Solution

The fourth proportional to 215,671.83, 297,628.30 and 125,081.50 is: 172,613.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,671.83 : 297,628.30 = 125,081.50 : x
  2. Step 2: Convert to fraction form
    215,671.83/297,628.30 = 125,081.50/x
  3. Step 3: Cross multiply
    215,671.83x = 297,628.30 × 125,081.50
  4. Step 4: Simplify right side
    215,671.83x = 37,227,794,206.45
  5. Step 5: Solve for x
    x = 37,227,794,206.45/215,671.83
  6. Step 6: Final answer
    x = 172,613.15

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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.