Home / 220,419.36-330,444.72-102,175.60

Finding the Fourth Proportional to 220,419.36, 330,444.72 and 102,175.60

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Solution

The fourth proportional to 220,419.36, 330,444.72 and 102,175.60 is: 153,177.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,419.36 : 330,444.72 = 102,175.60 : x
  2. Step 2: Convert to fraction form
    220,419.36/330,444.72 = 102,175.60/x
  3. Step 3: Cross multiply
    220,419.36x = 330,444.72 × 102,175.60
  4. Step 4: Simplify right side
    220,419.36x = 33,763,387,532.83
  5. Step 5: Solve for x
    x = 33,763,387,532.83/220,419.36
  6. Step 6: Final answer
    x = 153,177.96

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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.