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Finding the Fourth Proportional to 329,542.40, 494,313.60 and 161,143.40

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Solution

The fourth proportional to 329,542.40, 494,313.60 and 161,143.40 is: 241,715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,542.40 : 494,313.60 = 161,143.40 : x
  2. Step 2: Convert to fraction form
    329,542.40/494,313.60 = 161,143.40/x
  3. Step 3: Cross multiply
    329,542.40x = 494,313.60 × 161,143.40
  4. Step 4: Simplify right side
    329,542.40x = 79,655,374,170.24
  5. Step 5: Solve for x
    x = 79,655,374,170.24/329,542.40
  6. Step 6: Final answer
    x = 241,715.10

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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.