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Finding the Fourth Proportional to 201,660.70, 302,491.05 and 83,416.90

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Solution

The fourth proportional to 201,660.70, 302,491.05 and 83,416.90 is: 125,125.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,660.70 : 302,491.05 = 83,416.90 : x
  2. Step 2: Convert to fraction form
    201,660.70/302,491.05 = 83,416.90/x
  3. Step 3: Cross multiply
    201,660.70x = 302,491.05 × 83,416.90
  4. Step 4: Simplify right side
    201,660.70x = 25,232,865,668.75
  5. Step 5: Solve for x
    x = 25,232,865,668.75/201,660.70
  6. Step 6: Final answer
    x = 125,125.35

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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.