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Finding the Fourth Proportional to 305,878.60, 458,817.90 and 95,537.80

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Solution

The fourth proportional to 305,878.60, 458,817.90 and 95,537.80 is: 143,306.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,878.60 : 458,817.90 = 95,537.80 : x
  2. Step 2: Convert to fraction form
    305,878.60/458,817.90 = 95,537.80/x
  3. Step 3: Cross multiply
    305,878.60x = 458,817.90 × 95,537.80
  4. Step 4: Simplify right side
    305,878.60x = 43,834,452,766.62
  5. Step 5: Solve for x
    x = 43,834,452,766.62/305,878.60
  6. Step 6: Final answer
    x = 143,306.70

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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.