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Finding the Fourth Proportional to 303,645, 455,745.24 and 153,988.56

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Solution

The fourth proportional to 303,645, 455,745.24 and 153,988.56 is: 231,123.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,645 : 455,745.24 = 153,988.56 : x
  2. Step 2: Convert to fraction form
    303,645/455,745.24 = 153,988.56/x
  3. Step 3: Cross multiply
    303,645x = 455,745.24 × 153,988.56
  4. Step 4: Simplify right side
    303,645x = 70,179,553,234.45
  5. Step 5: Solve for x
    x = 70,179,553,234.45/303,645
  6. Step 6: Final answer
    x = 231,123.69

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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.