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Finding the Fourth Proportional to 253,649.97, 380,059.38 and 153,842.58

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Solution

The fourth proportional to 253,649.97, 380,059.38 and 153,842.58 is: 230,511.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,649.97 : 380,059.38 = 153,842.58 : x
  2. Step 2: Convert to fraction form
    253,649.97/380,059.38 = 153,842.58/x
  3. Step 3: Cross multiply
    253,649.97x = 380,059.38 × 153,842.58
  4. Step 4: Simplify right side
    253,649.97x = 58,469,315,572.40
  5. Step 5: Solve for x
    x = 58,469,315,572.40/253,649.97
  6. Step 6: Final answer
    x = 230,511.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.