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Finding the Fourth Proportional to 263,312.60, 394,968.90 and 168,834.20

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Solution

The fourth proportional to 263,312.60, 394,968.90 and 168,834.20 is: 253,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,312.60 : 394,968.90 = 168,834.20 : x
  2. Step 2: Convert to fraction form
    263,312.60/394,968.90 = 168,834.20/x
  3. Step 3: Cross multiply
    263,312.60x = 394,968.90 × 168,834.20
  4. Step 4: Simplify right side
    263,312.60x = 66,684,258,256.38
  5. Step 5: Solve for x
    x = 66,684,258,256.38/263,312.60
  6. Step 6: Final answer
    x = 253,251.30

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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.