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Finding the Fourth Proportional to 275,569.86, 380,253.63 and 154,684.62

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Solution

The fourth proportional to 275,569.86, 380,253.63 and 154,684.62 is: 213,446.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,569.86 : 380,253.63 = 154,684.62 : x
  2. Step 2: Convert to fraction form
    275,569.86/380,253.63 = 154,684.62/x
  3. Step 3: Cross multiply
    275,569.86x = 380,253.63 × 154,684.62
  4. Step 4: Simplify right side
    275,569.86x = 58,819,388,260.17
  5. Step 5: Solve for x
    x = 58,819,388,260.17/275,569.86
  6. Step 6: Final answer
    x = 213,446.38

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1.5x scale

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.