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Finding the Fourth Proportional to 288,082.62, 397,724.31 and 207,717.66

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Solution

The fourth proportional to 288,082.62, 397,724.31 and 207,717.66 is: 286,773.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,082.62 : 397,724.31 = 207,717.66 : x
  2. Step 2: Convert to fraction form
    288,082.62/397,724.31 = 207,717.66/x
  3. Step 3: Cross multiply
    288,082.62x = 397,724.31 × 207,717.66
  4. Step 4: Simplify right side
    288,082.62x = 82,614,362,998.31
  5. Step 5: Solve for x
    x = 82,614,362,998.31/288,082.62
  6. Step 6: Final answer
    x = 286,773.16

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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.