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Finding the Fourth Proportional to 203,223.52, 280,265.70 and 131,528.80

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Solution

The fourth proportional to 203,223.52, 280,265.70 and 131,528.80 is: 181,391.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,223.52 : 280,265.70 = 131,528.80 : x
  2. Step 2: Convert to fraction form
    203,223.52/280,265.70 = 131,528.80/x
  3. Step 3: Cross multiply
    203,223.52x = 280,265.70 × 131,528.80
  4. Step 4: Simplify right side
    203,223.52x = 36,863,011,202.16
  5. Step 5: Solve for x
    x = 36,863,011,202.16/203,223.52
  6. Step 6: Final answer
    x = 181,391.46

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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.