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Finding the Fourth Proportional to 274,077.88, 378,232.76 and 153,227.91

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Solution

The fourth proportional to 274,077.88, 378,232.76 and 153,227.91 is: 211,457.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,077.88 : 378,232.76 = 153,227.91 : x
  2. Step 2: Convert to fraction form
    274,077.88/378,232.76 = 153,227.91/x
  3. Step 3: Cross multiply
    274,077.88x = 378,232.76 × 153,227.91
  4. Step 4: Simplify right side
    274,077.88x = 57,955,815,308.33
  5. Step 5: Solve for x
    x = 57,955,815,308.33/274,077.88
  6. Step 6: Final answer
    x = 211,457.47

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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.