Home / 312,182.14-430,811.30-168,942.18

Finding the Fourth Proportional to 312,182.14, 430,811.30 and 168,942.18

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Solution

The fourth proportional to 312,182.14, 430,811.30 and 168,942.18 is: 233,140.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,182.14 : 430,811.30 = 168,942.18 : x
  2. Step 2: Convert to fraction form
    312,182.14/430,811.30 = 168,942.18/x
  3. Step 3: Cross multiply
    312,182.14x = 430,811.30 × 168,942.18
  4. Step 4: Simplify right side
    312,182.14x = 72,782,200,190.63
  5. Step 5: Solve for x
    x = 72,782,200,190.63/312,182.14
  6. Step 6: Final answer
    x = 233,140.18

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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.