Home / 288,982.16-398,779.34-161,633.15

Finding the Fourth Proportional to 288,982.16, 398,779.34 and 161,633.15

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Solution

The fourth proportional to 288,982.16, 398,779.34 and 161,633.15 is: 223,044.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,982.16 : 398,779.34 = 161,633.15 : x
  2. Step 2: Convert to fraction form
    288,982.16/398,779.34 = 161,633.15/x
  3. Step 3: Cross multiply
    288,982.16x = 398,779.34 × 161,633.15
  4. Step 4: Simplify right side
    288,982.16x = 64,455,962,280.15
  5. Step 5: Solve for x
    x = 64,455,962,280.15/288,982.16
  6. Step 6: Final answer
    x = 223,044.78

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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.