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Finding the Fourth Proportional to 436,608.72, 654,913.08 and 156,108.96

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Solution

The fourth proportional to 436,608.72, 654,913.08 and 156,108.96 is: 234,163.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,608.72 : 654,913.08 = 156,108.96 : x
  2. Step 2: Convert to fraction form
    436,608.72/654,913.08 = 156,108.96/x
  3. Step 3: Cross multiply
    436,608.72x = 654,913.08 × 156,108.96
  4. Step 4: Simplify right side
    436,608.72x = 102,237,799,809.20
  5. Step 5: Solve for x
    x = 102,237,799,809.20/436,608.72
  6. Step 6: Final answer
    x = 234,163.44

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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.