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Finding the Fourth Proportional to 224,578.76, 309,918.75 and 123,976.76

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Solution

The fourth proportional to 224,578.76, 309,918.75 and 123,976.76 is: 171,087.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,578.76 : 309,918.75 = 123,976.76 : x
  2. Step 2: Convert to fraction form
    224,578.76/309,918.75 = 123,976.76/x
  3. Step 3: Cross multiply
    224,578.76x = 309,918.75 × 123,976.76
  4. Step 4: Simplify right side
    224,578.76x = 38,422,720,938.66
  5. Step 5: Solve for x
    x = 38,422,720,938.66/224,578.76
  6. Step 6: Final answer
    x = 171,087.96

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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.