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Finding the Fourth Proportional to 518,375.94, 777,447.28 and 185,951.94

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Solution

The fourth proportional to 518,375.94, 777,447.28 and 185,951.94 is: 278,886.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,375.94 : 777,447.28 = 185,951.94 : x
  2. Step 2: Convert to fraction form
    518,375.94/777,447.28 = 185,951.94/x
  3. Step 3: Cross multiply
    518,375.94x = 777,447.28 × 185,951.94
  4. Step 4: Simplify right side
    518,375.94x = 144,567,829,963.72
  5. Step 5: Solve for x
    x = 144,567,829,963.72/518,375.94
  6. Step 6: Final answer
    x = 278,886.07

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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.