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Finding the Fourth Proportional to 203,435.96, 280,727.88 and 117,398.51

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Solution

The fourth proportional to 203,435.96, 280,727.88 and 117,398.51 is: 162,002.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,435.96 : 280,727.88 = 117,398.51 : x
  2. Step 2: Convert to fraction form
    203,435.96/280,727.88 = 117,398.51/x
  3. Step 3: Cross multiply
    203,435.96x = 280,727.88 × 117,398.51
  4. Step 4: Simplify right side
    203,435.96x = 32,957,035,615.40
  5. Step 5: Solve for x
    x = 32,957,035,615.40/203,435.96
  6. Step 6: Final answer
    x = 162,002.02

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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.