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Finding the Fourth Proportional to 201,042.40, 301,126.20 and 161,676.40

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Solution

The fourth proportional to 201,042.40, 301,126.20 and 161,676.40 is: 242,162.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,042.40 : 301,126.20 = 161,676.40 : x
  2. Step 2: Convert to fraction form
    201,042.40/301,126.20 = 161,676.40/x
  3. Step 3: Cross multiply
    201,042.40x = 301,126.20 × 161,676.40
  4. Step 4: Simplify right side
    201,042.40x = 48,684,999,961.68
  5. Step 5: Solve for x
    x = 48,684,999,961.68/201,042.40
  6. Step 6: Final answer
    x = 242,162.85

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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.