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Finding the Fourth Proportional to 329,090.13, 493,635.20 and 79,772.13

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Solution

The fourth proportional to 329,090.13, 493,635.20 and 79,772.13 is: 119,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,090.13 : 493,635.20 = 79,772.13 : x
  2. Step 2: Convert to fraction form
    329,090.13/493,635.20 = 79,772.13/x
  3. Step 3: Cross multiply
    329,090.13x = 493,635.20 × 79,772.13
  4. Step 4: Simplify right side
    329,090.13x = 39,378,331,346.98
  5. Step 5: Solve for x
    x = 39,378,331,346.98/329,090.13
  6. Step 6: Final answer
    x = 119,658.20

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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.