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Finding the Fourth Proportional to 485,225.97, 669,602.91 and 270,361.41

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Solution

The fourth proportional to 485,225.97, 669,602.91 and 270,361.41 is: 373,093.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,225.97 : 669,602.91 = 270,361.41 : x
  2. Step 2: Convert to fraction form
    485,225.97/669,602.91 = 270,361.41/x
  3. Step 3: Cross multiply
    485,225.97x = 669,602.91 × 270,361.41
  4. Step 4: Simplify right side
    485,225.97x = 181,034,786,887.70
  5. Step 5: Solve for x
    x = 181,034,786,887.70/485,225.97
  6. Step 6: Final answer
    x = 373,093.77

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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.