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Finding the Fourth Proportional to 353,413.38, 487,699.34 and 192,264.32

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Solution

The fourth proportional to 353,413.38, 487,699.34 and 192,264.32 is: 265,318.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,413.38 : 487,699.34 = 192,264.32 : x
  2. Step 2: Convert to fraction form
    353,413.38/487,699.34 = 192,264.32/x
  3. Step 3: Cross multiply
    353,413.38x = 487,699.34 × 192,264.32
  4. Step 4: Simplify right side
    353,413.38x = 93,767,181,969.55
  5. Step 5: Solve for x
    x = 93,767,181,969.55/353,413.38
  6. Step 6: Final answer
    x = 265,318.71

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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.