Home / 297,436.30-445,243.20-163,907.80

Finding the Fourth Proportional to 297,436.30, 445,243.20 and 163,907.80

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Solution

The fourth proportional to 297,436.30, 445,243.20 and 163,907.80 is: 245,359.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,436.30 : 445,243.20 = 163,907.80 : x
  2. Step 2: Convert to fraction form
    297,436.30/445,243.20 = 163,907.80/x
  3. Step 3: Cross multiply
    297,436.30x = 445,243.20 × 163,907.80
  4. Step 4: Simplify right side
    297,436.30x = 72,978,833,376.96
  5. Step 5: Solve for x
    x = 72,978,833,376.96/297,436.30
  6. Step 6: Final answer
    x = 245,359.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.