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Finding the Fourth Proportional to 220,155.21, 303,814.26 and 119,553.21

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Solution

The fourth proportional to 220,155.21, 303,814.26 and 119,553.21 is: 164,983.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,155.21 : 303,814.26 = 119,553.21 : x
  2. Step 2: Convert to fraction form
    220,155.21/303,814.26 = 119,553.21/x
  3. Step 3: Cross multiply
    220,155.21x = 303,814.26 × 119,553.21
  4. Step 4: Simplify right side
    220,155.21x = 36,321,970,026.77
  5. Step 5: Solve for x
    x = 36,321,970,026.77/220,155.21
  6. Step 6: Final answer
    x = 164,983.47

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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.