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Finding the Fourth Proportional to 366,920.40, 550,380.60 and 247,346.18

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Solution

The fourth proportional to 366,920.40, 550,380.60 and 247,346.18 is: 371,019.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,920.40 : 550,380.60 = 247,346.18 : x
  2. Step 2: Convert to fraction form
    366,920.40/550,380.60 = 247,346.18/x
  3. Step 3: Cross multiply
    366,920.40x = 550,380.60 × 247,346.18
  4. Step 4: Simplify right side
    366,920.40x = 136,134,538,956.11
  5. Step 5: Solve for x
    x = 136,134,538,956.11/366,920.40
  6. Step 6: Final answer
    x = 371,019.27

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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.