Home / 376,499.12-519,615.60-215,331.80

Finding the Fourth Proportional to 376,499.12, 519,615.60 and 215,331.80

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Solution

The fourth proportional to 376,499.12, 519,615.60 and 215,331.80 is: 297,184.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,499.12 : 519,615.60 = 215,331.80 : x
  2. Step 2: Convert to fraction form
    376,499.12/519,615.60 = 215,331.80/x
  3. Step 3: Cross multiply
    376,499.12x = 519,615.60 × 215,331.80
  4. Step 4: Simplify right side
    376,499.12x = 111,889,762,456.08
  5. Step 5: Solve for x
    x = 111,889,762,456.08/376,499.12
  6. Step 6: Final answer
    x = 297,184.66

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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.