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Finding the Fourth Proportional to 138,831.71, 208,247.59 and 33,650.69

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Solution

The fourth proportional to 138,831.71, 208,247.59 and 33,650.69 is: 50,476.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,831.71 : 208,247.59 = 33,650.69 : x
  2. Step 2: Convert to fraction form
    138,831.71/208,247.59 = 33,650.69/x
  3. Step 3: Cross multiply
    138,831.71x = 208,247.59 × 33,650.69
  4. Step 4: Simplify right side
    138,831.71x = 7,007,675,094.34
  5. Step 5: Solve for x
    x = 7,007,675,094.34/138,831.71
  6. Step 6: Final answer
    x = 50,476.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.