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Finding the Fourth Proportional to 303,599.32, 455,676.78 and 153,942.91

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Solution

The fourth proportional to 303,599.32, 455,676.78 and 153,942.91 is: 231,055.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,599.32 : 455,676.78 = 153,942.91 : x
  2. Step 2: Convert to fraction form
    303,599.32/455,676.78 = 153,942.91/x
  3. Step 3: Cross multiply
    303,599.32x = 455,676.78 × 153,942.91
  4. Step 4: Simplify right side
    303,599.32x = 70,148,209,532.63
  5. Step 5: Solve for x
    x = 70,148,209,532.63/303,599.32
  6. Step 6: Final answer
    x = 231,055.23

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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.