Home / 238,138.92-328,682.66-142,700.97

Finding the Fourth Proportional to 238,138.92, 328,682.66 and 142,700.97

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Solution

The fourth proportional to 238,138.92, 328,682.66 and 142,700.97 is: 196,957.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,138.92 : 328,682.66 = 142,700.97 : x
  2. Step 2: Convert to fraction form
    238,138.92/328,682.66 = 142,700.97/x
  3. Step 3: Cross multiply
    238,138.92x = 328,682.66 × 142,700.97
  4. Step 4: Simplify right side
    238,138.92x = 46,903,333,690.68
  5. Step 5: Solve for x
    x = 46,903,333,690.68/238,138.92
  6. Step 6: Final answer
    x = 196,957.87

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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.