Home / 216,702.27-324,972.57-74,507.31

Finding the Fourth Proportional to 216,702.27, 324,972.57 and 74,507.31

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Solution

The fourth proportional to 216,702.27, 324,972.57 and 74,507.31 is: 111,733.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,702.27 : 324,972.57 = 74,507.31 : x
  2. Step 2: Convert to fraction form
    216,702.27/324,972.57 = 74,507.31/x
  3. Step 3: Cross multiply
    216,702.27x = 324,972.57 × 74,507.31
  4. Step 4: Simplify right side
    216,702.27x = 24,212,832,293.89
  5. Step 5: Solve for x
    x = 24,212,832,293.89/216,702.27
  6. Step 6: Final answer
    x = 111,733.17

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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.