Home / 213,966.36-321,003-64,209.41

Finding the Fourth Proportional to 213,966.36, 321,003 and 64,209.41

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Solution

The fourth proportional to 213,966.36, 321,003 and 64,209.41 is: 96,330.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,966.36 : 321,003 = 64,209.41 : x
  2. Step 2: Convert to fraction form
    213,966.36/321,003 = 64,209.41/x
  3. Step 3: Cross multiply
    213,966.36x = 321,003 × 64,209.41
  4. Step 4: Simplify right side
    213,966.36x = 20,611,412,836.98
  5. Step 5: Solve for x
    x = 20,611,412,836.98/213,966.36
  6. Step 6: Final answer
    x = 96,330.16

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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.