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Finding the Fourth Proportional to 275,446.08, 380,123.16 and 154,594.88

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Solution

The fourth proportional to 275,446.08, 380,123.16 and 154,594.88 is: 213,345.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,446.08 : 380,123.16 = 154,594.88 : x
  2. Step 2: Convert to fraction form
    275,446.08/380,123.16 = 154,594.88/x
  3. Step 3: Cross multiply
    275,446.08x = 380,123.16 × 154,594.88
  4. Step 4: Simplify right side
    275,446.08x = 58,765,094,305.42
  5. Step 5: Solve for x
    x = 58,765,094,305.42/275,446.08
  6. Step 6: Final answer
    x = 213,345.18

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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.