Home / 216,645.84-324,875.82-74,505.42

Finding the Fourth Proportional to 216,645.84, 324,875.82 and 74,505.42

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Solution

The fourth proportional to 216,645.84, 324,875.82 and 74,505.42 is: 111,726.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,645.84 : 324,875.82 = 74,505.42 : x
  2. Step 2: Convert to fraction form
    216,645.84/324,875.82 = 74,505.42/x
  3. Step 3: Cross multiply
    216,645.84x = 324,875.82 × 74,505.42
  4. Step 4: Simplify right side
    216,645.84x = 24,205,009,416.94
  5. Step 5: Solve for x
    x = 24,205,009,416.94/216,645.84
  6. Step 6: Final answer
    x = 111,726.17

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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.