Home / 230,237.90-345,340-72,511.46

Finding the Fourth Proportional to 230,237.90, 345,340 and 72,511.46

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Solution

The fourth proportional to 230,237.90, 345,340 and 72,511.46 is: 108,761.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,237.90 : 345,340 = 72,511.46 : x
  2. Step 2: Convert to fraction form
    230,237.90/345,340 = 72,511.46/x
  3. Step 3: Cross multiply
    230,237.90x = 345,340 × 72,511.46
  4. Step 4: Simplify right side
    230,237.90x = 25,041,107,596.40
  5. Step 5: Solve for x
    x = 25,041,107,596.40/230,237.90
  6. Step 6: Final answer
    x = 108,761.88

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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.