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Finding the Fourth Proportional to 552,145.82, 827,728.47 and 215,108.46

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Solution

The fourth proportional to 552,145.82, 827,728.47 and 215,108.46 is: 322,471.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,145.82 : 827,728.47 = 215,108.46 : x
  2. Step 2: Convert to fraction form
    552,145.82/827,728.47 = 215,108.46/x
  3. Step 3: Cross multiply
    552,145.82x = 827,728.47 × 215,108.46
  4. Step 4: Simplify right side
    552,145.82x = 178,051,396,479.86
  5. Step 5: Solve for x
    x = 178,051,396,479.86/552,145.82
  6. Step 6: Final answer
    x = 322,471.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.