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Finding the Fourth Proportional to 203,210.80, 305,012.94 and 98,103.52

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Solution

The fourth proportional to 203,210.80, 305,012.94 and 98,103.52 is: 147,250.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,210.80 : 305,012.94 = 98,103.52 : x
  2. Step 2: Convert to fraction form
    203,210.80/305,012.94 = 98,103.52/x
  3. Step 3: Cross multiply
    203,210.80x = 305,012.94 × 98,103.52
  4. Step 4: Simplify right side
    203,210.80x = 29,922,843,059.55
  5. Step 5: Solve for x
    x = 29,922,843,059.55/203,210.80
  6. Step 6: Final answer
    x = 147,250.26

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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.