Home / 213,479.78-320,208.12-108,296.02

Finding the Fourth Proportional to 213,479.78, 320,208.12 and 108,296.02

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Solution

The fourth proportional to 213,479.78, 320,208.12 and 108,296.02 is: 162,438.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,479.78 : 320,208.12 = 108,296.02 : x
  2. Step 2: Convert to fraction form
    213,479.78/320,208.12 = 108,296.02/x
  3. Step 3: Cross multiply
    213,479.78x = 320,208.12 × 108,296.02
  4. Step 4: Simplify right side
    213,479.78x = 34,677,264,967.68
  5. Step 5: Solve for x
    x = 34,677,264,967.68/213,479.78
  6. Step 6: Final answer
    x = 162,438.17

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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.