Home / 280,958.72-421,350.12-93,926.48

Finding the Fourth Proportional to 280,958.72, 421,350.12 and 93,926.48

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Solution

The fourth proportional to 280,958.72, 421,350.12 and 93,926.48 is: 140,860.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,958.72 : 421,350.12 = 93,926.48 : x
  2. Step 2: Convert to fraction form
    280,958.72/421,350.12 = 93,926.48/x
  3. Step 3: Cross multiply
    280,958.72x = 421,350.12 × 93,926.48
  4. Step 4: Simplify right side
    280,958.72x = 39,575,933,619.18
  5. Step 5: Solve for x
    x = 39,575,933,619.18/280,958.72
  6. Step 6: Final answer
    x = 140,860.31

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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.