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Finding the Fourth Proportional to 543,650.70, 815,864.85 and 228,333.90

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Solution

The fourth proportional to 543,650.70, 815,864.85 and 228,333.90 is: 342,664.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,650.70 : 815,864.85 = 228,333.90 : x
  2. Step 2: Convert to fraction form
    543,650.70/815,864.85 = 228,333.90/x
  3. Step 3: Cross multiply
    543,650.70x = 815,864.85 × 228,333.90
  4. Step 4: Simplify right side
    543,650.70x = 186,289,603,073.42
  5. Step 5: Solve for x
    x = 186,289,603,073.42/543,650.70
  6. Step 6: Final answer
    x = 342,664.15

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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.