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Finding the Fourth Proportional to 275,394.24, 380,047.68 and 154,561.68

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Solution

The fourth proportional to 275,394.24, 380,047.68 and 154,561.68 is: 213,297.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,394.24 : 380,047.68 = 154,561.68 : x
  2. Step 2: Convert to fraction form
    275,394.24/380,047.68 = 154,561.68/x
  3. Step 3: Cross multiply
    275,394.24x = 380,047.68 × 154,561.68
  4. Step 4: Simplify right side
    275,394.24x = 58,740,807,900.90
  5. Step 5: Solve for x
    x = 58,740,807,900.90/275,394.24
  6. Step 6: Final answer
    x = 213,297.16

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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.