Home / 262,209.20-393,313.80-72,669.20

Finding the Fourth Proportional to 262,209.20, 393,313.80 and 72,669.20

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Solution

The fourth proportional to 262,209.20, 393,313.80 and 72,669.20 is: 109,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,209.20 : 393,313.80 = 72,669.20 : x
  2. Step 2: Convert to fraction form
    262,209.20/393,313.80 = 72,669.20/x
  3. Step 3: Cross multiply
    262,209.20x = 393,313.80 × 72,669.20
  4. Step 4: Simplify right side
    262,209.20x = 28,581,799,194.96
  5. Step 5: Solve for x
    x = 28,581,799,194.96/262,209.20
  6. Step 6: Final answer
    x = 109,003.80

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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.