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Finding the Fourth Proportional to 376,879.84, 520,092.48 and 215,734

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Solution

The fourth proportional to 376,879.84, 520,092.48 and 215,734 is: 297,711.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,879.84 : 520,092.48 = 215,734 : x
  2. Step 2: Convert to fraction form
    376,879.84/520,092.48 = 215,734/x
  3. Step 3: Cross multiply
    376,879.84x = 520,092.48 × 215,734
  4. Step 4: Simplify right side
    376,879.84x = 112,201,631,080.32
  5. Step 5: Solve for x
    x = 112,201,631,080.32/376,879.84
  6. Step 6: Final answer
    x = 297,711.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.