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Finding the Fourth Proportional to 243,732.75, 336,348.36 and 136,301.78

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Solution

The fourth proportional to 243,732.75, 336,348.36 and 136,301.78 is: 188,094.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,732.75 : 336,348.36 = 136,301.78 : x
  2. Step 2: Convert to fraction form
    243,732.75/336,348.36 = 136,301.78/x
  3. Step 3: Cross multiply
    243,732.75x = 336,348.36 × 136,301.78
  4. Step 4: Simplify right side
    243,732.75x = 45,844,878,486.34
  5. Step 5: Solve for x
    x = 45,844,878,486.34/243,732.75
  6. Step 6: Final answer
    x = 188,094.86

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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.