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Finding the Fourth Proportional to 218,099.37, 300,944.52 and 122,587.86

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Solution

The fourth proportional to 218,099.37, 300,944.52 and 122,587.86 is: 169,152.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,099.37 : 300,944.52 = 122,587.86 : x
  2. Step 2: Convert to fraction form
    218,099.37/300,944.52 = 122,587.86/x
  3. Step 3: Cross multiply
    218,099.37x = 300,944.52 × 122,587.86
  4. Step 4: Simplify right side
    218,099.37x = 36,892,144,685.53
  5. Step 5: Solve for x
    x = 36,892,144,685.53/218,099.37
  6. Step 6: Final answer
    x = 169,152.92

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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.