Home / 226,410.06-312,439.30-129,610.65

Finding the Fourth Proportional to 226,410.06, 312,439.30 and 129,610.65

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Solution

The fourth proportional to 226,410.06, 312,439.30 and 129,610.65 is: 178,858.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,410.06 : 312,439.30 = 129,610.65 : x
  2. Step 2: Convert to fraction form
    226,410.06/312,439.30 = 129,610.65/x
  3. Step 3: Cross multiply
    226,410.06x = 312,439.30 × 129,610.65
  4. Step 4: Simplify right side
    226,410.06x = 40,495,460,758.55
  5. Step 5: Solve for x
    x = 40,495,460,758.55/226,410.06
  6. Step 6: Final answer
    x = 178,858.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.