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Finding the Fourth Proportional to 377,855.20, 566,126.70 and 318,806.20

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Solution

The fourth proportional to 377,855.20, 566,126.70 and 318,806.20 is: 477,655.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,855.20 : 566,126.70 = 318,806.20 : x
  2. Step 2: Convert to fraction form
    377,855.20/566,126.70 = 318,806.20/x
  3. Step 3: Cross multiply
    377,855.20x = 566,126.70 × 318,806.20
  4. Step 4: Simplify right side
    377,855.20x = 180,484,701,945.54
  5. Step 5: Solve for x
    x = 180,484,701,945.54/377,855.20
  6. Step 6: Final answer
    x = 477,655.73

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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.