Home / 207,453.20-311,196.16-102,214.80

Finding the Fourth Proportional to 207,453.20, 311,196.16 and 102,214.80

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Solution

The fourth proportional to 207,453.20, 311,196.16 and 102,214.80 is: 153,330.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,453.20 : 311,196.16 = 102,214.80 : x
  2. Step 2: Convert to fraction form
    207,453.20/311,196.16 = 102,214.80/x
  3. Step 3: Cross multiply
    207,453.20x = 311,196.16 × 102,214.80
  4. Step 4: Simplify right side
    207,453.20x = 31,808,853,255.17
  5. Step 5: Solve for x
    x = 31,808,853,255.17/207,453.20
  6. Step 6: Final answer
    x = 153,330.26

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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.