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Finding the Fourth Proportional to 370,080.54, 555,342.21 and 339,965.55

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Solution

The fourth proportional to 370,080.54, 555,342.21 and 339,965.55 is: 510,151.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,080.54 : 555,342.21 = 339,965.55 : x
  2. Step 2: Convert to fraction form
    370,080.54/555,342.21 = 339,965.55/x
  3. Step 3: Cross multiply
    370,080.54x = 555,342.21 × 339,965.55
  4. Step 4: Simplify right side
    370,080.54x = 188,797,219,860.87
  5. Step 5: Solve for x
    x = 188,797,219,860.87/370,080.54
  6. Step 6: Final answer
    x = 510,151.71

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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.