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Finding the Fourth Proportional to 366,955.78, 550,573.80 and 142,473.86

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Solution

The fourth proportional to 366,955.78, 550,573.80 and 142,473.86 is: 213,765.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,955.78 : 550,573.80 = 142,473.86 : x
  2. Step 2: Convert to fraction form
    366,955.78/550,573.80 = 142,473.86/x
  3. Step 3: Cross multiply
    366,955.78x = 550,573.80 × 142,473.86
  4. Step 4: Simplify right side
    366,955.78x = 78,442,374,500.87
  5. Step 5: Solve for x
    x = 78,442,374,500.87/366,955.78
  6. Step 6: Final answer
    x = 213,765.20

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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.