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Finding the Fourth Proportional to 301,045.60, 451,568.40 and 123,679.90

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Solution

The fourth proportional to 301,045.60, 451,568.40 and 123,679.90 is: 185,519.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,045.60 : 451,568.40 = 123,679.90 : x
  2. Step 2: Convert to fraction form
    301,045.60/451,568.40 = 123,679.90/x
  3. Step 3: Cross multiply
    301,045.60x = 451,568.40 × 123,679.90
  4. Step 4: Simplify right side
    301,045.60x = 55,849,934,555.16
  5. Step 5: Solve for x
    x = 55,849,934,555.16/301,045.60
  6. Step 6: Final answer
    x = 185,519.85

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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.