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Finding the Fourth Proportional to 217,046.39, 299,449.05 and 136,480.04

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Solution

The fourth proportional to 217,046.39, 299,449.05 and 136,480.04 is: 188,295.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,046.39 : 299,449.05 = 136,480.04 : x
  2. Step 2: Convert to fraction form
    217,046.39/299,449.05 = 136,480.04/x
  3. Step 3: Cross multiply
    217,046.39x = 299,449.05 × 136,480.04
  4. Step 4: Simplify right side
    217,046.39x = 40,868,818,203.55
  5. Step 5: Solve for x
    x = 40,868,818,203.55/217,046.39
  6. Step 6: Final answer
    x = 188,295.32

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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.