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Finding the Fourth Proportional to 275,591.86, 380,313.56 and 154,730.07

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Solution

The fourth proportional to 275,591.86, 380,313.56 and 154,730.07 is: 213,525.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,591.86 : 380,313.56 = 154,730.07 : x
  2. Step 2: Convert to fraction form
    275,591.86/380,313.56 = 154,730.07/x
  3. Step 3: Cross multiply
    275,591.86x = 380,313.56 × 154,730.07
  4. Step 4: Simplify right side
    275,591.86x = 58,845,944,147.57
  5. Step 5: Solve for x
    x = 58,845,944,147.57/275,591.86
  6. Step 6: Final answer
    x = 213,525.70

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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.