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Finding the Fourth Proportional to 243,568.60, 336,156.33 and 136,160.98

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Solution

The fourth proportional to 243,568.60, 336,156.33 and 136,160.98 is: 187,919.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,568.60 : 336,156.33 = 136,160.98 : x
  2. Step 2: Convert to fraction form
    243,568.60/336,156.33 = 136,160.98/x
  3. Step 3: Cross multiply
    243,568.60x = 336,156.33 × 136,160.98
  4. Step 4: Simplify right side
    243,568.60x = 45,771,375,326.00
  5. Step 5: Solve for x
    x = 45,771,375,326.00/243,568.60
  6. Step 6: Final answer
    x = 187,919.85

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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.