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Finding the Fourth Proportional to 329,147.70, 493,721.55 and 303,486.90

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Solution

The fourth proportional to 329,147.70, 493,721.55 and 303,486.90 is: 455,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,147.70 : 493,721.55 = 303,486.90 : x
  2. Step 2: Convert to fraction form
    329,147.70/493,721.55 = 303,486.90/x
  3. Step 3: Cross multiply
    329,147.70x = 493,721.55 × 303,486.90
  4. Step 4: Simplify right side
    329,147.70x = 149,838,022,672.70
  5. Step 5: Solve for x
    x = 149,838,022,672.70/329,147.70
  6. Step 6: Final answer
    x = 455,230.35

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Similar ratio
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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.