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Finding the Fourth Proportional to 274,666.34, 379,008.22 and 153,790.82

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Solution

The fourth proportional to 274,666.34, 379,008.22 and 153,790.82 is: 212,213.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,666.34 : 379,008.22 = 153,790.82 : x
  2. Step 2: Convert to fraction form
    274,666.34/379,008.22 = 153,790.82/x
  3. Step 3: Cross multiply
    274,666.34x = 379,008.22 × 153,790.82
  4. Step 4: Simplify right side
    274,666.34x = 58,287,984,940.54
  5. Step 5: Solve for x
    x = 58,287,984,940.54/274,666.34
  6. Step 6: Final answer
    x = 212,213.79

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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.