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Finding the Fourth Proportional to 201,626.70, 302,440.05 and 83,382.90

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Solution

The fourth proportional to 201,626.70, 302,440.05 and 83,382.90 is: 125,074.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,626.70 : 302,440.05 = 83,382.90 : x
  2. Step 2: Convert to fraction form
    201,626.70/302,440.05 = 83,382.90/x
  3. Step 3: Cross multiply
    201,626.70x = 302,440.05 × 83,382.90
  4. Step 4: Simplify right side
    201,626.70x = 25,218,328,445.15
  5. Step 5: Solve for x
    x = 25,218,328,445.15/201,626.70
  6. Step 6: Final answer
    x = 125,074.35

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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.