Home / 243,844.08-336,489-136,395.72

Finding the Fourth Proportional to 243,844.08, 336,489 and 136,395.72

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Solution

The fourth proportional to 243,844.08, 336,489 and 136,395.72 is: 188,217.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,844.08 : 336,489 = 136,395.72 : x
  2. Step 2: Convert to fraction form
    243,844.08/336,489 = 136,395.72/x
  3. Step 3: Cross multiply
    243,844.08x = 336,489 × 136,395.72
  4. Step 4: Simplify right side
    243,844.08x = 45,895,659,427.08
  5. Step 5: Solve for x
    x = 45,895,659,427.08/243,844.08
  6. Step 6: Final answer
    x = 188,217.24

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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.