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Finding the Fourth Proportional to 150,960.78, 208,330.90 and 82,980.18

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Solution

The fourth proportional to 150,960.78, 208,330.90 and 82,980.18 is: 114,515.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,960.78 : 208,330.90 = 82,980.18 : x
  2. Step 2: Convert to fraction form
    150,960.78/208,330.90 = 82,980.18/x
  3. Step 3: Cross multiply
    150,960.78x = 208,330.90 × 82,980.18
  4. Step 4: Simplify right side
    150,960.78x = 17,287,335,581.56
  5. Step 5: Solve for x
    x = 17,287,335,581.56/150,960.78
  6. Step 6: Final answer
    x = 114,515.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.