Home / 376,180.20-519,128.73-215,038.80

Finding the Fourth Proportional to 376,180.20, 519,128.73 and 215,038.80

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Solution

The fourth proportional to 376,180.20, 519,128.73 and 215,038.80 is: 296,753.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,180.20 : 519,128.73 = 215,038.80 : x
  2. Step 2: Convert to fraction form
    376,180.20/519,128.73 = 215,038.80/x
  3. Step 3: Cross multiply
    376,180.20x = 519,128.73 × 215,038.80
  4. Step 4: Simplify right side
    376,180.20x = 111,632,819,144.72
  5. Step 5: Solve for x
    x = 111,632,819,144.72/376,180.20
  6. Step 6: Final answer
    x = 296,753.57

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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.