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Finding the Fourth Proportional to 215,321.60, 297,139.76 and 119,827.44

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Solution

The fourth proportional to 215,321.60, 297,139.76 and 119,827.44 is: 165,359.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,321.60 : 297,139.76 = 119,827.44 : x
  2. Step 2: Convert to fraction form
    215,321.60/297,139.76 = 119,827.44/x
  3. Step 3: Cross multiply
    215,321.60x = 297,139.76 × 119,827.44
  4. Step 4: Simplify right side
    215,321.60x = 35,605,496,763.01
  5. Step 5: Solve for x
    x = 35,605,496,763.01/215,321.60
  6. Step 6: Final answer
    x = 165,359.61

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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.