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Finding the Fourth Proportional to 220,137.29, 303,821.58 and 123,347.70

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Solution

The fourth proportional to 220,137.29, 303,821.58 and 123,347.70 is: 170,237.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,137.29 : 303,821.58 = 123,347.70 : x
  2. Step 2: Convert to fraction form
    220,137.29/303,821.58 = 123,347.70/x
  3. Step 3: Cross multiply
    220,137.29x = 303,821.58 × 123,347.70
  4. Step 4: Simplify right side
    220,137.29x = 37,475,693,103.37
  5. Step 5: Solve for x
    x = 37,475,693,103.37/220,137.29
  6. Step 6: Final answer
    x = 170,237.82

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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.