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Finding the Fourth Proportional to 215,690.01, 297,604.25 and 123,803.69

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Solution

The fourth proportional to 215,690.01, 297,604.25 and 123,803.69 is: 170,821.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,690.01 : 297,604.25 = 123,803.69 : x
  2. Step 2: Convert to fraction form
    215,690.01/297,604.25 = 123,803.69/x
  3. Step 3: Cross multiply
    215,690.01x = 297,604.25 × 123,803.69
  4. Step 4: Simplify right side
    215,690.01x = 36,844,504,689.13
  5. Step 5: Solve for x
    x = 36,844,504,689.13/215,690.01
  6. Step 6: Final answer
    x = 170,821.56

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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.