Home / 230,441.68-345,723-72,675.28

Finding the Fourth Proportional to 230,441.68, 345,723 and 72,675.28

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Solution

The fourth proportional to 230,441.68, 345,723 and 72,675.28 is: 109,031.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,441.68 : 345,723 = 72,675.28 : x
  2. Step 2: Convert to fraction form
    230,441.68/345,723 = 72,675.28/x
  3. Step 3: Cross multiply
    230,441.68x = 345,723 × 72,675.28
  4. Step 4: Simplify right side
    230,441.68x = 25,125,515,827.44
  5. Step 5: Solve for x
    x = 25,125,515,827.44/230,441.68
  6. Step 6: Final answer
    x = 109,031.99

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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.