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Finding the Fourth Proportional to 250,281.56, 345,413.34 and 142,867.76

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Solution

The fourth proportional to 250,281.56, 345,413.34 and 142,867.76 is: 197,171.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,281.56 : 345,413.34 = 142,867.76 : x
  2. Step 2: Convert to fraction form
    250,281.56/345,413.34 = 142,867.76/x
  3. Step 3: Cross multiply
    250,281.56x = 345,413.34 × 142,867.76
  4. Step 4: Simplify right side
    250,281.56x = 49,348,428,432.85
  5. Step 5: Solve for x
    x = 49,348,428,432.85/250,281.56
  6. Step 6: Final answer
    x = 197,171.65

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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.