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Finding the Fourth Proportional to 376,182.29, 519,131.48 and 215,040.80

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Solution

The fourth proportional to 376,182.29, 519,131.48 and 215,040.80 is: 296,756.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,182.29 : 519,131.48 = 215,040.80 : x
  2. Step 2: Convert to fraction form
    376,182.29/519,131.48 = 215,040.80/x
  3. Step 3: Cross multiply
    376,182.29x = 519,131.48 × 215,040.80
  4. Step 4: Simplify right side
    376,182.29x = 111,634,445,093.52
  5. Step 5: Solve for x
    x = 111,634,445,093.52/376,182.29
  6. Step 6: Final answer
    x = 296,756.25

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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.