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Finding the Fourth Proportional to 203,014.54, 280,152.90 and 112,370.68

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Solution

The fourth proportional to 203,014.54, 280,152.90 and 112,370.68 is: 155,067.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,014.54 : 280,152.90 = 112,370.68 : x
  2. Step 2: Convert to fraction form
    203,014.54/280,152.90 = 112,370.68/x
  3. Step 3: Cross multiply
    203,014.54x = 280,152.90 × 112,370.68
  4. Step 4: Simplify right side
    203,014.54x = 31,480,971,876.97
  5. Step 5: Solve for x
    x = 31,480,971,876.97/203,014.54
  6. Step 6: Final answer
    x = 155,067.57

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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.