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Finding the Fourth Proportional to 220,156.21, 303,815.64 and 119,554.21

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Solution

The fourth proportional to 220,156.21, 303,815.64 and 119,554.21 is: 164,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,156.21 : 303,815.64 = 119,554.21 : x
  2. Step 2: Convert to fraction form
    220,156.21/303,815.64 = 119,554.21/x
  3. Step 3: Cross multiply
    220,156.21x = 303,815.64 × 119,554.21
  4. Step 4: Simplify right side
    220,156.21x = 36,322,438,825.84
  5. Step 5: Solve for x
    x = 36,322,438,825.84/220,156.21
  6. Step 6: Final answer
    x = 164,984.85

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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.