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Finding the Fourth Proportional to 203,462.88, 280,767.33 and 112,813.44

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Solution

The fourth proportional to 203,462.88, 280,767.33 and 112,813.44 is: 155,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,462.88 : 280,767.33 = 112,813.44 : x
  2. Step 2: Convert to fraction form
    203,462.88/280,767.33 = 112,813.44/x
  3. Step 3: Cross multiply
    203,462.88x = 280,767.33 × 112,813.44
  4. Step 4: Simplify right side
    203,462.88x = 31,674,328,336.92
  5. Step 5: Solve for x
    x = 31,674,328,336.92/203,462.88
  6. Step 6: Final answer
    x = 155,676.20

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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.