Home / 213,904.10-320,856.15-202,499.30

Finding the Fourth Proportional to 213,904.10, 320,856.15 and 202,499.30

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Solution

The fourth proportional to 213,904.10, 320,856.15 and 202,499.30 is: 303,748.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,904.10 : 320,856.15 = 202,499.30 : x
  2. Step 2: Convert to fraction form
    213,904.10/320,856.15 = 202,499.30/x
  3. Step 3: Cross multiply
    213,904.10x = 320,856.15 × 202,499.30
  4. Step 4: Simplify right side
    213,904.10x = 64,973,145,775.70
  5. Step 5: Solve for x
    x = 64,973,145,775.70/213,904.10
  6. Step 6: Final answer
    x = 303,748.95

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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.