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Finding the Fourth Proportional to 228,363.90, 342,515.61 and 103,676.22

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Solution

The fourth proportional to 228,363.90, 342,515.61 and 103,676.22 is: 155,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,363.90 : 342,515.61 = 103,676.22 : x
  2. Step 2: Convert to fraction form
    228,363.90/342,515.61 = 103,676.22/x
  3. Step 3: Cross multiply
    228,363.90x = 342,515.61 × 103,676.22
  4. Step 4: Simplify right side
    228,363.90x = 35,510,723,735.79
  5. Step 5: Solve for x
    x = 35,510,723,735.79/228,363.90
  6. Step 6: Final answer
    x = 155,500.60

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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.