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Finding the Fourth Proportional to 366,980.05, 550,470.08 and 100,781.65

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Solution

The fourth proportional to 366,980.05, 550,470.08 and 100,781.65 is: 151,172.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,980.05 : 550,470.08 = 100,781.65 : x
  2. Step 2: Convert to fraction form
    366,980.05/550,470.08 = 100,781.65/x
  3. Step 3: Cross multiply
    366,980.05x = 550,470.08 × 100,781.65
  4. Step 4: Simplify right side
    366,980.05x = 55,477,282,938.03
  5. Step 5: Solve for x
    x = 55,477,282,938.03/366,980.05
  6. Step 6: Final answer
    x = 151,172.48

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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.