Home / 280,350.72-386,826.24-161,095.68

Finding the Fourth Proportional to 280,350.72, 386,826.24 and 161,095.68

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Solution

The fourth proportional to 280,350.72, 386,826.24 and 161,095.68 is: 222,278.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,350.72 : 386,826.24 = 161,095.68 : x
  2. Step 2: Convert to fraction form
    280,350.72/386,826.24 = 161,095.68/x
  3. Step 3: Cross multiply
    280,350.72x = 386,826.24 × 161,095.68
  4. Step 4: Simplify right side
    280,350.72x = 62,316,036,174.64
  5. Step 5: Solve for x
    x = 62,316,036,174.64/280,350.72
  6. Step 6: Final answer
    x = 222,278.85

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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.