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Finding the Fourth Proportional to 215,290.92, 297,076.74 and 124,648.68

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Solution

The fourth proportional to 215,290.92, 297,076.74 and 124,648.68 is: 172,000.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,290.92 : 297,076.74 = 124,648.68 : x
  2. Step 2: Convert to fraction form
    215,290.92/297,076.74 = 124,648.68/x
  3. Step 3: Cross multiply
    215,290.92x = 297,076.74 × 124,648.68
  4. Step 4: Simplify right side
    215,290.92x = 37,030,223,499.70
  5. Step 5: Solve for x
    x = 37,030,223,499.70/215,290.92
  6. Step 6: Final answer
    x = 172,000.86

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1.5x scale

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.