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Finding the Fourth Proportional to 203,208.73, 280,565.03 and 126,844.13

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Solution

The fourth proportional to 203,208.73, 280,565.03 and 126,844.13 is: 175,130.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,208.73 : 280,565.03 = 126,844.13 : x
  2. Step 2: Convert to fraction form
    203,208.73/280,565.03 = 126,844.13/x
  3. Step 3: Cross multiply
    203,208.73x = 280,565.03 × 126,844.13
  4. Step 4: Simplify right side
    203,208.73x = 35,588,027,138.77
  5. Step 5: Solve for x
    x = 35,588,027,138.77/203,208.73
  6. Step 6: Final answer
    x = 175,130.40

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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.