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Finding the Fourth Proportional to 281,009.01, 387,426.33 and 204,540.57

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Solution

The fourth proportional to 281,009.01, 387,426.33 and 204,540.57 is: 281,999.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,009.01 : 387,426.33 = 204,540.57 : x
  2. Step 2: Convert to fraction form
    281,009.01/387,426.33 = 204,540.57/x
  3. Step 3: Cross multiply
    281,009.01x = 387,426.33 × 204,540.57
  4. Step 4: Simplify right side
    281,009.01x = 79,244,402,371.21
  5. Step 5: Solve for x
    x = 79,244,402,371.21/281,009.01
  6. Step 6: Final answer
    x = 281,999.51

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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.