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Finding the Fourth Proportional to 203,387.04, 305,164.32 and 89,476.32

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Solution

The fourth proportional to 203,387.04, 305,164.32 and 89,476.32 is: 134,251.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,387.04 : 305,164.32 = 89,476.32 : x
  2. Step 2: Convert to fraction form
    203,387.04/305,164.32 = 89,476.32/x
  3. Step 3: Cross multiply
    203,387.04x = 305,164.32 × 89,476.32
  4. Step 4: Simplify right side
    203,387.04x = 27,304,980,348.90
  5. Step 5: Solve for x
    x = 27,304,980,348.90/203,387.04
  6. Step 6: Final answer
    x = 134,251.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.