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Finding the Fourth Proportional to 238,249.89, 328,760.55 and 142,754.13

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Solution

The fourth proportional to 238,249.89, 328,760.55 and 142,754.13 is: 196,986.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,249.89 : 328,760.55 = 142,754.13 : x
  2. Step 2: Convert to fraction form
    238,249.89/328,760.55 = 142,754.13/x
  3. Step 3: Cross multiply
    238,249.89x = 328,760.55 × 142,754.13
  4. Step 4: Simplify right side
    238,249.89x = 46,931,926,293.57
  5. Step 5: Solve for x
    x = 46,931,926,293.57/238,249.89
  6. Step 6: Final answer
    x = 196,986.14

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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.