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Finding the Fourth Proportional to 303,355.10, 454,989.45 and 103,684.70

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Solution

The fourth proportional to 303,355.10, 454,989.45 and 103,684.70 is: 155,512.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,355.10 : 454,989.45 = 103,684.70 : x
  2. Step 2: Convert to fraction form
    303,355.10/454,989.45 = 103,684.70/x
  3. Step 3: Cross multiply
    303,355.10x = 454,989.45 × 103,684.70
  4. Step 4: Simplify right side
    303,355.10x = 47,175,444,626.42
  5. Step 5: Solve for x
    x = 47,175,444,626.42/303,355.10
  6. Step 6: Final answer
    x = 155,512.28

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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.