Home / 216,116.29-324,200.31-66,336.95

Finding the Fourth Proportional to 216,116.29, 324,200.31 and 66,336.95

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Solution

The fourth proportional to 216,116.29, 324,200.31 and 66,336.95 is: 99,513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,116.29 : 324,200.31 = 66,336.95 : x
  2. Step 2: Convert to fraction form
    216,116.29/324,200.31 = 66,336.95/x
  3. Step 3: Cross multiply
    216,116.29x = 324,200.31 × 66,336.95
  4. Step 4: Simplify right side
    216,116.29x = 21,506,459,754.45
  5. Step 5: Solve for x
    x = 21,506,459,754.45/216,116.29
  6. Step 6: Final answer
    x = 99,513.37

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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.