Home / 312,180.14-430,808.55-168,940.19

Finding the Fourth Proportional to 312,180.14, 430,808.55 and 168,940.19

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Solution

The fourth proportional to 312,180.14, 430,808.55 and 168,940.19 is: 233,137.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,180.14 : 430,808.55 = 168,940.19 : x
  2. Step 2: Convert to fraction form
    312,180.14/430,808.55 = 168,940.19/x
  3. Step 3: Cross multiply
    312,180.14x = 430,808.55 × 168,940.19
  4. Step 4: Simplify right side
    312,180.14x = 72,780,876,136.58
  5. Step 5: Solve for x
    x = 72,780,876,136.58/312,180.14
  6. Step 6: Final answer
    x = 233,137.44

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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.