Home / 216,509.06-324,680.56-74,327.84

Finding the Fourth Proportional to 216,509.06, 324,680.56 and 74,327.84

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Solution

The fourth proportional to 216,509.06, 324,680.56 and 74,327.84 is: 111,463.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,509.06 : 324,680.56 = 74,327.84 : x
  2. Step 2: Convert to fraction form
    216,509.06/324,680.56 = 74,327.84/x
  3. Step 3: Cross multiply
    216,509.06x = 324,680.56 × 74,327.84
  4. Step 4: Simplify right side
    216,509.06x = 24,132,804,714.79
  5. Step 5: Solve for x
    x = 24,132,804,714.79/216,509.06
  6. Step 6: Final answer
    x = 111,463.26

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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.