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Finding the Fourth Proportional to 281,242.60, 421,863.90 and 94,260.20

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Solution

The fourth proportional to 281,242.60, 421,863.90 and 94,260.20 is: 141,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,242.60 : 421,863.90 = 94,260.20 : x
  2. Step 2: Convert to fraction form
    281,242.60/421,863.90 = 94,260.20/x
  3. Step 3: Cross multiply
    281,242.60x = 421,863.90 × 94,260.20
  4. Step 4: Simplify right side
    281,242.60x = 39,764,975,586.78
  5. Step 5: Solve for x
    x = 39,764,975,586.78/281,242.60
  6. Step 6: Final answer
    x = 141,390.30

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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.