Home / 219,621.10-329,431.65-201,906.40

Finding the Fourth Proportional to 219,621.10, 329,431.65 and 201,906.40

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Solution

The fourth proportional to 219,621.10, 329,431.65 and 201,906.40 is: 302,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,621.10 : 329,431.65 = 201,906.40 : x
  2. Step 2: Convert to fraction form
    219,621.10/329,431.65 = 201,906.40/x
  3. Step 3: Cross multiply
    219,621.10x = 329,431.65 × 201,906.40
  4. Step 4: Simplify right side
    219,621.10x = 66,514,358,497.56
  5. Step 5: Solve for x
    x = 66,514,358,497.56/219,621.10
  6. Step 6: Final answer
    x = 302,859.60

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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.