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Finding the Fourth Proportional to 201,257.20, 301,885.80 and 181,212.40

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Solution

The fourth proportional to 201,257.20, 301,885.80 and 181,212.40 is: 271,818.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,257.20 : 301,885.80 = 181,212.40 : x
  2. Step 2: Convert to fraction form
    201,257.20/301,885.80 = 181,212.40/x
  3. Step 3: Cross multiply
    201,257.20x = 301,885.80 × 181,212.40
  4. Step 4: Simplify right side
    201,257.20x = 54,705,450,343.92
  5. Step 5: Solve for x
    x = 54,705,450,343.92/201,257.20
  6. Step 6: Final answer
    x = 271,818.60

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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.