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Finding the Fourth Proportional to 329,783.60, 494,675.40 and 262,132.40

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Solution

The fourth proportional to 329,783.60, 494,675.40 and 262,132.40 is: 393,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,783.60 : 494,675.40 = 262,132.40 : x
  2. Step 2: Convert to fraction form
    329,783.60/494,675.40 = 262,132.40/x
  3. Step 3: Cross multiply
    329,783.60x = 494,675.40 × 262,132.40
  4. Step 4: Simplify right side
    329,783.60x = 129,670,449,822.96
  5. Step 5: Solve for x
    x = 129,670,449,822.96/329,783.60
  6. Step 6: Final answer
    x = 393,198.60

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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.