Home / 312,106.27-430,584.10-181,261.65

Finding the Fourth Proportional to 312,106.27, 430,584.10 and 181,261.65

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Solution

The fourth proportional to 312,106.27, 430,584.10 and 181,261.65 is: 250,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,106.27 : 430,584.10 = 181,261.65 : x
  2. Step 2: Convert to fraction form
    312,106.27/430,584.10 = 181,261.65/x
  3. Step 3: Cross multiply
    312,106.27x = 430,584.10 × 181,261.65
  4. Step 4: Simplify right side
    312,106.27x = 78,048,384,429.77
  5. Step 5: Solve for x
    x = 78,048,384,429.77/312,106.27
  6. Step 6: Final answer
    x = 250,069.90

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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.