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Finding the Fourth Proportional to 329,641.40, 494,462.10 and 223,353.20

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Solution

The fourth proportional to 329,641.40, 494,462.10 and 223,353.20 is: 335,029.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,641.40 : 494,462.10 = 223,353.20 : x
  2. Step 2: Convert to fraction form
    329,641.40/494,462.10 = 223,353.20/x
  3. Step 3: Cross multiply
    329,641.40x = 494,462.10 × 223,353.20
  4. Step 4: Simplify right side
    329,641.40x = 110,439,692,313.72
  5. Step 5: Solve for x
    x = 110,439,692,313.72/329,641.40
  6. Step 6: Final answer
    x = 335,029.80

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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.