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Finding the Fourth Proportional to 613,737.50, 920,617.77 and 170,517.02

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Solution

The fourth proportional to 613,737.50, 920,617.77 and 170,517.02 is: 255,778.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,737.50 : 920,617.77 = 170,517.02 : x
  2. Step 2: Convert to fraction form
    613,737.50/920,617.77 = 170,517.02/x
  3. Step 3: Cross multiply
    613,737.50x = 920,617.77 × 170,517.02
  4. Step 4: Simplify right side
    613,737.50x = 156,980,998,699.45
  5. Step 5: Solve for x
    x = 156,980,998,699.45/613,737.50
  6. Step 6: Final answer
    x = 255,778.73

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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.