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Finding the Fourth Proportional to 220,034.94, 330,052.39 and 120,140.63

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Solution

The fourth proportional to 220,034.94, 330,052.39 and 120,140.63 is: 180,210.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,034.94 : 330,052.39 = 120,140.63 : x
  2. Step 2: Convert to fraction form
    220,034.94/330,052.39 = 120,140.63/x
  3. Step 3: Cross multiply
    220,034.94x = 330,052.39 × 120,140.63
  4. Step 4: Simplify right side
    220,034.94x = 39,652,702,067.61
  5. Step 5: Solve for x
    x = 39,652,702,067.61/220,034.94
  6. Step 6: Final answer
    x = 180,210.93

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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.