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Finding the Fourth Proportional to 366,978.40, 550,467.60 and 247,404.18

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Solution

The fourth proportional to 366,978.40, 550,467.60 and 247,404.18 is: 371,106.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,978.40 : 550,467.60 = 247,404.18 : x
  2. Step 2: Convert to fraction form
    366,978.40/550,467.60 = 247,404.18/x
  3. Step 3: Cross multiply
    366,978.40x = 550,467.60 × 247,404.18
  4. Step 4: Simplify right side
    366,978.40x = 136,187,985,194.57
  5. Step 5: Solve for x
    x = 136,187,985,194.57/366,978.40
  6. Step 6: Final answer
    x = 371,106.27

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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.