Home / 243,778.14-336,431.41-136,382.74

Finding the Fourth Proportional to 243,778.14, 336,431.41 and 136,382.74

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Solution

The fourth proportional to 243,778.14, 336,431.41 and 136,382.74 is: 188,218.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,778.14 : 336,431.41 = 136,382.74 : x
  2. Step 2: Convert to fraction form
    243,778.14/336,431.41 = 136,382.74/x
  3. Step 3: Cross multiply
    243,778.14x = 336,431.41 × 136,382.74
  4. Step 4: Simplify right side
    243,778.14x = 45,883,436,335.83
  5. Step 5: Solve for x
    x = 45,883,436,335.83/243,778.14
  6. Step 6: Final answer
    x = 188,218.01

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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.