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Finding the Fourth Proportional to 250,408.55, 375,613.50 and 72,919.91

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Solution

The fourth proportional to 250,408.55, 375,613.50 and 72,919.91 is: 109,380.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,408.55 : 375,613.50 = 72,919.91 : x
  2. Step 2: Convert to fraction form
    250,408.55/375,613.50 = 72,919.91/x
  3. Step 3: Cross multiply
    250,408.55x = 375,613.50 × 72,919.91
  4. Step 4: Simplify right side
    250,408.55x = 27,389,702,614.79
  5. Step 5: Solve for x
    x = 27,389,702,614.79/250,408.55
  6. Step 6: Final answer
    x = 109,380.06

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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.