Home / 288,130.55-431,845.91-203,915.33

Finding the Fourth Proportional to 288,130.55, 431,845.91 and 203,915.33

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Solution

The fourth proportional to 288,130.55, 431,845.91 and 203,915.33 is: 305,625.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,130.55 : 431,845.91 = 203,915.33 : x
  2. Step 2: Convert to fraction form
    288,130.55/431,845.91 = 203,915.33/x
  3. Step 3: Cross multiply
    288,130.55x = 431,845.91 × 203,915.33
  4. Step 4: Simplify right side
    288,130.55x = 88,059,998,067.99
  5. Step 5: Solve for x
    x = 88,059,998,067.99/288,130.55
  6. Step 6: Final answer
    x = 305,625.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.