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Finding the Fourth Proportional to 377,711.70, 567,004.95 and 228,120.90

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Solution

The fourth proportional to 377,711.70, 567,004.95 and 228,120.90 is: 342,445.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,711.70 : 567,004.95 = 228,120.90 : x
  2. Step 2: Convert to fraction form
    377,711.70/567,004.95 = 228,120.90/x
  3. Step 3: Cross multiply
    377,711.70x = 567,004.95 × 228,120.90
  4. Step 4: Simplify right side
    377,711.70x = 129,345,679,498.46
  5. Step 5: Solve for x
    x = 129,345,679,498.46/377,711.70
  6. Step 6: Final answer
    x = 342,445.52

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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.