Home / 238,380.38-328,827.38-142,831.70

Finding the Fourth Proportional to 238,380.38, 328,827.38 and 142,831.70

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Solution

The fourth proportional to 238,380.38, 328,827.38 and 142,831.70 is: 197,025.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,380.38 : 328,827.38 = 142,831.70 : x
  2. Step 2: Convert to fraction form
    238,380.38/328,827.38 = 142,831.70/x
  3. Step 3: Cross multiply
    238,380.38x = 328,827.38 × 142,831.70
  4. Step 4: Simplify right side
    238,380.38x = 46,966,972,977.79
  5. Step 5: Solve for x
    x = 46,966,972,977.79/238,380.38
  6. Step 6: Final answer
    x = 197,025.33

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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.