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Finding the Fourth Proportional to 203,325.82, 280,585.60 and 112,679.91

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Solution

The fourth proportional to 203,325.82, 280,585.60 and 112,679.91 is: 155,496.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,325.82 : 280,585.60 = 112,679.91 : x
  2. Step 2: Convert to fraction form
    203,325.82/280,585.60 = 112,679.91/x
  3. Step 3: Cross multiply
    203,325.82x = 280,585.60 × 112,679.91
  4. Step 4: Simplify right side
    203,325.82x = 31,616,360,155.30
  5. Step 5: Solve for x
    x = 31,616,360,155.30/203,325.82
  6. Step 6: Final answer
    x = 155,496.04

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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.