Home / 298,850.12-412,365.78-168,001.90

Finding the Fourth Proportional to 298,850.12, 412,365.78 and 168,001.90

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Solution

The fourth proportional to 298,850.12, 412,365.78 and 168,001.90 is: 231,815.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,850.12 : 412,365.78 = 168,001.90 : x
  2. Step 2: Convert to fraction form
    298,850.12/412,365.78 = 168,001.90/x
  3. Step 3: Cross multiply
    298,850.12x = 412,365.78 × 168,001.90
  4. Step 4: Simplify right side
    298,850.12x = 69,278,234,534.98
  5. Step 5: Solve for x
    x = 69,278,234,534.98/298,850.12
  6. Step 6: Final answer
    x = 231,815.98

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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.