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Finding the Fourth Proportional to 275,458.15, 380,084.25 and 154,604.53

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Solution

The fourth proportional to 275,458.15, 380,084.25 and 154,604.53 is: 213,327.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,458.15 : 380,084.25 = 154,604.53 : x
  2. Step 2: Convert to fraction form
    275,458.15/380,084.25 = 154,604.53/x
  3. Step 3: Cross multiply
    275,458.15x = 380,084.25 × 154,604.53
  4. Step 4: Simplify right side
    275,458.15x = 58,762,746,831.65
  5. Step 5: Solve for x
    x = 58,762,746,831.65/275,458.15
  6. Step 6: Final answer
    x = 213,327.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.