Home / 253,840.78-350,302.35-140,665.42

Finding the Fourth Proportional to 253,840.78, 350,302.35 and 140,665.42

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Solution

The fourth proportional to 253,840.78, 350,302.35 and 140,665.42 is: 194,119.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,840.78 : 350,302.35 = 140,665.42 : x
  2. Step 2: Convert to fraction form
    253,840.78/350,302.35 = 140,665.42/x
  3. Step 3: Cross multiply
    253,840.78x = 350,302.35 × 140,665.42
  4. Step 4: Simplify right side
    253,840.78x = 49,275,427,189.74
  5. Step 5: Solve for x
    x = 49,275,427,189.74/253,840.78
  6. Step 6: Final answer
    x = 194,119.43

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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.