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Finding the Fourth Proportional to 275,151.82, 379,728.99 and 152,684.26

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Solution

The fourth proportional to 275,151.82, 379,728.99 and 152,684.26 is: 210,715.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,151.82 : 379,728.99 = 152,684.26 : x
  2. Step 2: Convert to fraction form
    275,151.82/379,728.99 = 152,684.26/x
  3. Step 3: Cross multiply
    275,151.82x = 379,728.99 × 152,684.26
  4. Step 4: Simplify right side
    275,151.82x = 57,978,639,838.70
  5. Step 5: Solve for x
    x = 57,978,639,838.70/275,151.82
  6. Step 6: Final answer
    x = 210,715.09

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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.