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Finding the Fourth Proportional to 303,639, 455,736.24 and 153,982.56

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Solution

The fourth proportional to 303,639, 455,736.24 and 153,982.56 is: 231,114.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,639 : 455,736.24 = 153,982.56 : x
  2. Step 2: Convert to fraction form
    303,639/455,736.24 = 153,982.56/x
  3. Step 3: Cross multiply
    303,639x = 455,736.24 × 153,982.56
  4. Step 4: Simplify right side
    303,639x = 70,175,432,919.97
  5. Step 5: Solve for x
    x = 70,175,432,919.97/303,639
  6. Step 6: Final answer
    x = 231,114.69

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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.