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Finding the Fourth Proportional to 202,220.90, 303,367.80 and 83,904.20

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Solution

The fourth proportional to 202,220.90, 303,367.80 and 83,904.20 is: 125,871.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,220.90 : 303,367.80 = 83,904.20 : x
  2. Step 2: Convert to fraction form
    202,220.90/303,367.80 = 83,904.20/x
  3. Step 3: Cross multiply
    202,220.90x = 303,367.80 × 83,904.20
  4. Step 4: Simplify right side
    202,220.90x = 25,453,832,564.76
  5. Step 5: Solve for x
    x = 25,453,832,564.76/202,220.90
  6. Step 6: Final answer
    x = 125,871.42

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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.