Home / 216,418.30-324,643.76-64,603.38

Finding the Fourth Proportional to 216,418.30, 324,643.76 and 64,603.38

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Solution

The fourth proportional to 216,418.30, 324,643.76 and 64,603.38 is: 96,909.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,418.30 : 324,643.76 = 64,603.38 : x
  2. Step 2: Convert to fraction form
    216,418.30/324,643.76 = 64,603.38/x
  3. Step 3: Cross multiply
    216,418.30x = 324,643.76 × 64,603.38
  4. Step 4: Simplify right side
    216,418.30x = 20,973,085,146.87
  5. Step 5: Solve for x
    x = 20,973,085,146.87/216,418.30
  6. Step 6: Final answer
    x = 96,909.94

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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.