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Finding the Fourth Proportional to 376,661.80, 564,927.90 and 139,882.60

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Solution

The fourth proportional to 376,661.80, 564,927.90 and 139,882.60 is: 209,799.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,661.80 : 564,927.90 = 139,882.60 : x
  2. Step 2: Convert to fraction form
    376,661.80/564,927.90 = 139,882.60/x
  3. Step 3: Cross multiply
    376,661.80x = 564,927.90 × 139,882.60
  4. Step 4: Simplify right side
    376,661.80x = 79,023,583,464.54
  5. Step 5: Solve for x
    x = 79,023,583,464.54/376,661.80
  6. Step 6: Final answer
    x = 209,799.83

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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.