Home / 205,491.16-308,261.65-72,344.17

Finding the Fourth Proportional to 205,491.16, 308,261.65 and 72,344.17

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Solution

The fourth proportional to 205,491.16, 308,261.65 and 72,344.17 is: 108,525.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,491.16 : 308,261.65 = 72,344.17 : x
  2. Step 2: Convert to fraction form
    205,491.16/308,261.65 = 72,344.17/x
  3. Step 3: Cross multiply
    205,491.16x = 308,261.65 × 72,344.17
  4. Step 4: Simplify right side
    205,491.16x = 22,300,933,212.08
  5. Step 5: Solve for x
    x = 22,300,933,212.08/205,491.16
  6. Step 6: Final answer
    x = 108,525.02

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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.