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Finding the Fourth Proportional to 422,737.54, 634,005.63 and 170,018.62

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Solution

The fourth proportional to 422,737.54, 634,005.63 and 170,018.62 is: 254,987.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,737.54 : 634,005.63 = 170,018.62 : x
  2. Step 2: Convert to fraction form
    422,737.54/634,005.63 = 170,018.62/x
  3. Step 3: Cross multiply
    422,737.54x = 634,005.63 × 170,018.62
  4. Step 4: Simplify right side
    422,737.54x = 107,792,762,284.83
  5. Step 5: Solve for x
    x = 107,792,762,284.83/422,737.54
  6. Step 6: Final answer
    x = 254,987.44

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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.