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Finding the Fourth Proportional to 188,296.49, 259,851.21 and 103,413.55

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Solution

The fourth proportional to 188,296.49, 259,851.21 and 103,413.55 is: 142,711.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,296.49 : 259,851.21 = 103,413.55 : x
  2. Step 2: Convert to fraction form
    188,296.49/259,851.21 = 103,413.55/x
  3. Step 3: Cross multiply
    188,296.49x = 259,851.21 × 103,413.55
  4. Step 4: Simplify right side
    188,296.49x = 26,872,134,281.57
  5. Step 5: Solve for x
    x = 26,872,134,281.57/188,296.49
  6. Step 6: Final answer
    x = 142,711.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.