Home / 312,150.40-430,768.68-168,910.44

Finding the Fourth Proportional to 312,150.40, 430,768.68 and 168,910.44

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Solution

The fourth proportional to 312,150.40, 430,768.68 and 168,910.44 is: 233,097.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,150.40 : 430,768.68 = 168,910.44 : x
  2. Step 2: Convert to fraction form
    312,150.40/430,768.68 = 168,910.44/x
  3. Step 3: Cross multiply
    312,150.40x = 430,768.68 × 168,910.44
  4. Step 4: Simplify right side
    312,150.40x = 72,761,327,189.88
  5. Step 5: Solve for x
    x = 72,761,327,189.88/312,150.40
  6. Step 6: Final answer
    x = 233,097.02

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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.