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Finding the Fourth Proportional to 297,431.30, 445,235.70 and 163,902.80

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Solution

The fourth proportional to 297,431.30, 445,235.70 and 163,902.80 is: 245,352.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,431.30 : 445,235.70 = 163,902.80 : x
  2. Step 2: Convert to fraction form
    297,431.30/445,235.70 = 163,902.80/x
  3. Step 3: Cross multiply
    297,431.30x = 445,235.70 × 163,902.80
  4. Step 4: Simplify right side
    297,431.30x = 72,975,377,889.96
  5. Step 5: Solve for x
    x = 72,975,377,889.96/297,431.30
  6. Step 6: Final answer
    x = 245,352.05

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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.