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Finding the Fourth Proportional to 297,429.30, 445,232.70 and 163,900.80

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Solution

The fourth proportional to 297,429.30, 445,232.70 and 163,900.80 is: 245,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,429.30 : 445,232.70 = 163,900.80 : x
  2. Step 2: Convert to fraction form
    297,429.30/445,232.70 = 163,900.80/x
  3. Step 3: Cross multiply
    297,429.30x = 445,232.70 × 163,900.80
  4. Step 4: Simplify right side
    297,429.30x = 72,973,995,716.16
  5. Step 5: Solve for x
    x = 72,973,995,716.16/297,429.30
  6. Step 6: Final answer
    x = 245,349.05

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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.