Home / 213,746.10-320,619.15-203,904.60

Finding the Fourth Proportional to 213,746.10, 320,619.15 and 203,904.60

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Solution

The fourth proportional to 213,746.10, 320,619.15 and 203,904.60 is: 305,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,746.10 : 320,619.15 = 203,904.60 : x
  2. Step 2: Convert to fraction form
    213,746.10/320,619.15 = 203,904.60/x
  3. Step 3: Cross multiply
    213,746.10x = 320,619.15 × 203,904.60
  4. Step 4: Simplify right side
    213,746.10x = 65,375,719,533.09
  5. Step 5: Solve for x
    x = 65,375,719,533.09/213,746.10
  6. Step 6: Final answer
    x = 305,856.90

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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.