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Finding the Fourth Proportional to 201,769.70, 302,539.35 and 83,300.90

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Solution

The fourth proportional to 201,769.70, 302,539.35 and 83,300.90 is: 124,903.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,769.70 : 302,539.35 = 83,300.90 : x
  2. Step 2: Convert to fraction form
    201,769.70/302,539.35 = 83,300.90/x
  3. Step 3: Cross multiply
    201,769.70x = 302,539.35 × 83,300.90
  4. Step 4: Simplify right side
    201,769.70x = 25,201,800,140.42
  5. Step 5: Solve for x
    x = 25,201,800,140.42/201,769.70
  6. Step 6: Final answer
    x = 124,903.79

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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.