Home / 243,864.95-336,546.70-136,428.57

Finding the Fourth Proportional to 243,864.95, 336,546.70 and 136,428.57

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Solution

The fourth proportional to 243,864.95, 336,546.70 and 136,428.57 is: 188,278.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,864.95 : 336,546.70 = 136,428.57 : x
  2. Step 2: Convert to fraction form
    243,864.95/336,546.70 = 136,428.57/x
  3. Step 3: Cross multiply
    243,864.95x = 336,546.70 × 136,428.57
  4. Step 4: Simplify right side
    243,864.95x = 45,914,584,678.15
  5. Step 5: Solve for x
    x = 45,914,584,678.15/243,864.95
  6. Step 6: Final answer
    x = 188,278.74

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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.