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Finding the Fourth Proportional to 300,122.25, 450,017.18 and 122,753.81

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Solution

The fourth proportional to 300,122.25, 450,017.18 and 122,753.81 is: 184,062.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,122.25 : 450,017.18 = 122,753.81 : x
  2. Step 2: Convert to fraction form
    300,122.25/450,017.18 = 122,753.81/x
  3. Step 3: Cross multiply
    300,122.25x = 450,017.18 × 122,753.81
  4. Step 4: Simplify right side
    300,122.25x = 55,241,323,410.46
  5. Step 5: Solve for x
    x = 55,241,323,410.46/300,122.25
  6. Step 6: Final answer
    x = 184,062.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.