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Finding the Fourth Proportional to 329,123.70, 493,685.55 and 303,203.70

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Solution

The fourth proportional to 329,123.70, 493,685.55 and 303,203.70 is: 454,805.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,123.70 : 493,685.55 = 303,203.70 : x
  2. Step 2: Convert to fraction form
    329,123.70/493,685.55 = 303,203.70/x
  3. Step 3: Cross multiply
    329,123.70x = 493,685.55 × 303,203.70
  4. Step 4: Simplify right side
    329,123.70x = 149,687,285,396.54
  5. Step 5: Solve for x
    x = 149,687,285,396.54/329,123.70
  6. Step 6: Final answer
    x = 454,805.55

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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.