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Finding the Fourth Proportional to 376,442.80, 564,165.78 and 276,133.39

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Solution

The fourth proportional to 376,442.80, 564,165.78 and 276,133.39 is: 413,834.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,442.80 : 564,165.78 = 276,133.39 : x
  2. Step 2: Convert to fraction form
    376,442.80/564,165.78 = 276,133.39/x
  3. Step 3: Cross multiply
    376,442.80x = 564,165.78 × 276,133.39
  4. Step 4: Simplify right side
    376,442.80x = 155,785,009,353.39
  5. Step 5: Solve for x
    x = 155,785,009,353.39/376,442.80
  6. Step 6: Final answer
    x = 413,834.48

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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.