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Finding the Fourth Proportional to 248,230.72, 342,561.90 and 135,053.56

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Solution

The fourth proportional to 248,230.72, 342,561.90 and 135,053.56 is: 186,375.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,230.72 : 342,561.90 = 135,053.56 : x
  2. Step 2: Convert to fraction form
    248,230.72/342,561.90 = 135,053.56/x
  3. Step 3: Cross multiply
    248,230.72x = 342,561.90 × 135,053.56
  4. Step 4: Simplify right side
    248,230.72x = 46,264,204,115.36
  5. Step 5: Solve for x
    x = 46,264,204,115.36/248,230.72
  6. Step 6: Final answer
    x = 186,375.82

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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.