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Finding the Fourth Proportional to 220,230.93, 330,395.63 and 70,480.20

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Solution

The fourth proportional to 220,230.93, 330,395.63 and 70,480.20 is: 105,736.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,230.93 : 330,395.63 = 70,480.20 : x
  2. Step 2: Convert to fraction form
    220,230.93/330,395.63 = 70,480.20/x
  3. Step 3: Cross multiply
    220,230.93x = 330,395.63 × 70,480.20
  4. Step 4: Simplify right side
    220,230.93x = 23,286,349,729.13
  5. Step 5: Solve for x
    x = 23,286,349,729.13/220,230.93
  6. Step 6: Final answer
    x = 105,736.06

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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.