Home / 288,825.39-398,588.12-161,500.65

Finding the Fourth Proportional to 288,825.39, 398,588.12 and 161,500.65

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Solution

The fourth proportional to 288,825.39, 398,588.12 and 161,500.65 is: 222,875.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,825.39 : 398,588.12 = 161,500.65 : x
  2. Step 2: Convert to fraction form
    288,825.39/398,588.12 = 161,500.65/x
  3. Step 3: Cross multiply
    288,825.39x = 398,588.12 × 161,500.65
  4. Step 4: Simplify right side
    288,825.39x = 64,372,239,654.77
  5. Step 5: Solve for x
    x = 64,372,239,654.77/288,825.39
  6. Step 6: Final answer
    x = 222,875.97

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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.