Home / 378,005.39-566,811.21-178,272.15

Finding the Fourth Proportional to 378,005.39, 566,811.21 and 178,272.15

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Solution

The fourth proportional to 378,005.39, 566,811.21 and 178,272.15 is: 267,315.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,005.39 : 566,811.21 = 178,272.15 : x
  2. Step 2: Convert to fraction form
    378,005.39/566,811.21 = 178,272.15/x
  3. Step 3: Cross multiply
    378,005.39x = 566,811.21 × 178,272.15
  4. Step 4: Simplify right side
    378,005.39x = 101,046,653,050.80
  5. Step 5: Solve for x
    x = 101,046,653,050.80/378,005.39
  6. Step 6: Final answer
    x = 267,315.38

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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.