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Finding the Fourth Proportional to 366,980.40, 550,470.60 and 247,406.18

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Solution

The fourth proportional to 366,980.40, 550,470.60 and 247,406.18 is: 371,109.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,980.40 : 550,470.60 = 247,406.18 : x
  2. Step 2: Convert to fraction form
    366,980.40/550,470.60 = 247,406.18/x
  3. Step 3: Cross multiply
    366,980.40x = 550,470.60 × 247,406.18
  4. Step 4: Simplify right side
    366,980.40x = 136,189,828,348.31
  5. Step 5: Solve for x
    x = 136,189,828,348.31/366,980.40
  6. Step 6: Final answer
    x = 371,109.27

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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.