Home / 243,738.38-336,356.10-136,307.40

Finding the Fourth Proportional to 243,738.38, 336,356.10 and 136,307.40

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Solution

The fourth proportional to 243,738.38, 336,356.10 and 136,307.40 is: 188,102.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,738.38 : 336,356.10 = 136,307.40 : x
  2. Step 2: Convert to fraction form
    243,738.38/336,356.10 = 136,307.40/x
  3. Step 3: Cross multiply
    243,738.38x = 336,356.10 × 136,307.40
  4. Step 4: Simplify right side
    243,738.38x = 45,847,825,465.14
  5. Step 5: Solve for x
    x = 45,847,825,465.14/243,738.38
  6. Step 6: Final answer
    x = 188,102.61

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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.