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Finding the Fourth Proportional to 275,755.23, 380,527.61 and 154,901.61

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Solution

The fourth proportional to 275,755.23, 380,527.61 and 154,901.61 is: 213,756.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,755.23 : 380,527.61 = 154,901.61 : x
  2. Step 2: Convert to fraction form
    275,755.23/380,527.61 = 154,901.61/x
  3. Step 3: Cross multiply
    275,755.23x = 380,527.61 × 154,901.61
  4. Step 4: Simplify right side
    275,755.23x = 58,944,338,663.94
  5. Step 5: Solve for x
    x = 58,944,338,663.94/275,755.23
  6. Step 6: Final answer
    x = 213,756.01

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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.