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Finding the Fourth Proportional to 303,330.70, 454,996.05 and 103,621.15

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Solution

The fourth proportional to 303,330.70, 454,996.05 and 103,621.15 is: 155,431.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,330.70 : 454,996.05 = 103,621.15 : x
  2. Step 2: Convert to fraction form
    303,330.70/454,996.05 = 103,621.15/x
  3. Step 3: Cross multiply
    303,330.70x = 454,996.05 × 103,621.15
  4. Step 4: Simplify right side
    303,330.70x = 47,147,213,946.46
  5. Step 5: Solve for x
    x = 47,147,213,946.46/303,330.70
  6. Step 6: Final answer
    x = 155,431.73

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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.