Home / 274,986.20-412,421.70-134,845.40

Finding the Fourth Proportional to 274,986.20, 412,421.70 and 134,845.40

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Solution

The fourth proportional to 274,986.20, 412,421.70 and 134,845.40 is: 202,239.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,986.20 : 412,421.70 = 134,845.40 : x
  2. Step 2: Convert to fraction form
    274,986.20/412,421.70 = 134,845.40/x
  3. Step 3: Cross multiply
    274,986.20x = 412,421.70 × 134,845.40
  4. Step 4: Simplify right side
    274,986.20x = 55,613,169,105.18
  5. Step 5: Solve for x
    x = 55,613,169,105.18/274,986.20
  6. Step 6: Final answer
    x = 202,239.85

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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.