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Finding the Fourth Proportional to 266,413.01, 399,610.31 and 66,735.12

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Solution

The fourth proportional to 266,413.01, 399,610.31 and 66,735.12 is: 100,100.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,413.01 : 399,610.31 = 66,735.12 : x
  2. Step 2: Convert to fraction form
    266,413.01/399,610.31 = 66,735.12/x
  3. Step 3: Cross multiply
    266,413.01x = 399,610.31 × 66,735.12
  4. Step 4: Simplify right side
    266,413.01x = 26,668,041,657.41
  5. Step 5: Solve for x
    x = 26,668,041,657.41/266,413.01
  6. Step 6: Final answer
    x = 100,100.37

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1.5x scale

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.