Home / 412,679.12-619,196.87-223,272.95

Finding the Fourth Proportional to 412,679.12, 619,196.87 and 223,272.95

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Solution

The fourth proportional to 412,679.12, 619,196.87 and 223,272.95 is: 335,005.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,679.12 : 619,196.87 = 223,272.95 : x
  2. Step 2: Convert to fraction form
    412,679.12/619,196.87 = 223,272.95/x
  3. Step 3: Cross multiply
    412,679.12x = 619,196.87 × 223,272.95
  4. Step 4: Simplify right side
    412,679.12x = 138,249,909,257.87
  5. Step 5: Solve for x
    x = 138,249,909,257.87/412,679.12
  6. Step 6: Final answer
    x = 335,005.83

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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.