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Finding the Fourth Proportional to 380,750.40, 571,126.86 and 96,440.85

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Solution

The fourth proportional to 380,750.40, 571,126.86 and 96,440.85 is: 144,661.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,750.40 : 571,126.86 = 96,440.85 : x
  2. Step 2: Convert to fraction form
    380,750.40/571,126.86 = 96,440.85/x
  3. Step 3: Cross multiply
    380,750.40x = 571,126.86 × 96,440.85
  4. Step 4: Simplify right side
    380,750.40x = 55,079,959,836.23
  5. Step 5: Solve for x
    x = 55,079,959,836.23/380,750.40
  6. Step 6: Final answer
    x = 144,661.59

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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.