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Finding the Fourth Proportional to 275,618.68, 380,348.94 and 154,760.92

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Solution

The fourth proportional to 275,618.68, 380,348.94 and 154,760.92 is: 213,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,618.68 : 380,348.94 = 154,760.92 : x
  2. Step 2: Convert to fraction form
    275,618.68/380,348.94 = 154,760.92/x
  3. Step 3: Cross multiply
    275,618.68x = 380,348.94 × 154,760.92
  4. Step 4: Simplify right side
    275,618.68x = 58,863,151,875.42
  5. Step 5: Solve for x
    x = 58,863,151,875.42/275,618.68
  6. Step 6: Final answer
    x = 213,567.35

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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.