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Finding the Fourth Proportional to 203,372.04, 280,650.01 and 111,490.71

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Solution

The fourth proportional to 203,372.04, 280,650.01 and 111,490.71 is: 153,855.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,372.04 : 280,650.01 = 111,490.71 : x
  2. Step 2: Convert to fraction form
    203,372.04/280,650.01 = 111,490.71/x
  3. Step 3: Cross multiply
    203,372.04x = 280,650.01 × 111,490.71
  4. Step 4: Simplify right side
    203,372.04x = 31,289,868,876.41
  5. Step 5: Solve for x
    x = 31,289,868,876.41/203,372.04
  6. Step 6: Final answer
    x = 153,855.31

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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.