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Finding the Fourth Proportional to 176,745.23, 243,912.59 and 100,269.49

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Solution

The fourth proportional to 176,745.23, 243,912.59 and 100,269.49 is: 138,374.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,745.23 : 243,912.59 = 100,269.49 : x
  2. Step 2: Convert to fraction form
    176,745.23/243,912.59 = 100,269.49/x
  3. Step 3: Cross multiply
    176,745.23x = 243,912.59 × 100,269.49
  4. Step 4: Simplify right side
    176,745.23x = 24,456,990,644.77
  5. Step 5: Solve for x
    x = 24,456,990,644.77/176,745.23
  6. Step 6: Final answer
    x = 138,374.26

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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.