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Finding the Fourth Proportional to 243,608.31, 336,181.86 and 136,184.22

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Solution

The fourth proportional to 243,608.31, 336,181.86 and 136,184.22 is: 187,935.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,608.31 : 336,181.86 = 136,184.22 : x
  2. Step 2: Convert to fraction form
    243,608.31/336,181.86 = 136,184.22/x
  3. Step 3: Cross multiply
    243,608.31x = 336,181.86 × 136,184.22
  4. Step 4: Simplify right side
    243,608.31x = 45,782,664,382.25
  5. Step 5: Solve for x
    x = 45,782,664,382.25/243,608.31
  6. Step 6: Final answer
    x = 187,935.56

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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.