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Finding the Fourth Proportional to 303,410.40, 454,678.20 and 134,792.70

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Solution

The fourth proportional to 303,410.40, 454,678.20 and 134,792.70 is: 201,994.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,410.40 : 454,678.20 = 134,792.70 : x
  2. Step 2: Convert to fraction form
    303,410.40/454,678.20 = 134,792.70/x
  3. Step 3: Cross multiply
    303,410.40x = 454,678.20 × 134,792.70
  4. Step 4: Simplify right side
    303,410.40x = 61,287,302,209.14
  5. Step 5: Solve for x
    x = 61,287,302,209.14/303,410.40
  6. Step 6: Final answer
    x = 201,994.73

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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.