Home / 288,682.12-398,365.25-159,613.11

Finding the Fourth Proportional to 288,682.12, 398,365.25 and 159,613.11

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Solution

The fourth proportional to 288,682.12, 398,365.25 and 159,613.11 is: 220,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,682.12 : 398,365.25 = 159,613.11 : x
  2. Step 2: Convert to fraction form
    288,682.12/398,365.25 = 159,613.11/x
  3. Step 3: Cross multiply
    288,682.12x = 398,365.25 × 159,613.11
  4. Step 4: Simplify right side
    288,682.12x = 63,584,316,468.43
  5. Step 5: Solve for x
    x = 63,584,316,468.43/288,682.12
  6. Step 6: Final answer
    x = 220,257.20

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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.