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Finding the Fourth Proportional to 243,549.64, 336,086.85 and 136,118.80

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Solution

The fourth proportional to 243,549.64, 336,086.85 and 136,118.80 is: 187,837.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,549.64 : 336,086.85 = 136,118.80 : x
  2. Step 2: Convert to fraction form
    243,549.64/336,086.85 = 136,118.80/x
  3. Step 3: Cross multiply
    243,549.64x = 336,086.85 × 136,118.80
  4. Step 4: Simplify right side
    243,549.64x = 45,747,738,717.78
  5. Step 5: Solve for x
    x = 45,747,738,717.78/243,549.64
  6. Step 6: Final answer
    x = 187,837.43

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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.