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Finding the Fourth Proportional to 303,708.88, 455,841.42 and 154,052.56

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Solution

The fourth proportional to 303,708.88, 455,841.42 and 154,052.56 is: 231,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,708.88 : 455,841.42 = 154,052.56 : x
  2. Step 2: Convert to fraction form
    303,708.88/455,841.42 = 154,052.56/x
  3. Step 3: Cross multiply
    303,708.88x = 455,841.42 × 154,052.56
  4. Step 4: Simplify right side
    303,708.88x = 70,223,537,705.04
  5. Step 5: Solve for x
    x = 70,223,537,705.04/303,708.88
  6. Step 6: Final answer
    x = 231,219.90

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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.