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Finding the Fourth Proportional to 243,626.16, 336,202.56 and 136,195.68

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Solution

The fourth proportional to 243,626.16, 336,202.56 and 136,195.68 is: 187,949.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,626.16 : 336,202.56 = 136,195.68 : x
  2. Step 2: Convert to fraction form
    243,626.16/336,202.56 = 136,195.68/x
  3. Step 3: Cross multiply
    243,626.16x = 336,202.56 × 136,195.68
  4. Step 4: Simplify right side
    243,626.16x = 45,789,336,276.94
  5. Step 5: Solve for x
    x = 45,789,336,276.94/243,626.16
  6. Step 6: Final answer
    x = 187,949.18

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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.