Home / 376,501.12-519,618.36-215,333.80

Finding the Fourth Proportional to 376,501.12, 519,618.36 and 215,333.80

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Solution

The fourth proportional to 376,501.12, 519,618.36 and 215,333.80 is: 297,187.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,501.12 : 519,618.36 = 215,333.80 : x
  2. Step 2: Convert to fraction form
    376,501.12/519,618.36 = 215,333.80/x
  3. Step 3: Cross multiply
    376,501.12x = 519,618.36 × 215,333.80
  4. Step 4: Simplify right side
    376,501.12x = 111,891,396,008.57
  5. Step 5: Solve for x
    x = 111,891,396,008.57/376,501.12
  6. Step 6: Final answer
    x = 297,187.42

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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.