Home / 222,036.66-306,413.02-121,432.50

Finding the Fourth Proportional to 222,036.66, 306,413.02 and 121,432.50

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Solution

The fourth proportional to 222,036.66, 306,413.02 and 121,432.50 is: 167,578.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,036.66 : 306,413.02 = 121,432.50 : x
  2. Step 2: Convert to fraction form
    222,036.66/306,413.02 = 121,432.50/x
  3. Step 3: Cross multiply
    222,036.66x = 306,413.02 × 121,432.50
  4. Step 4: Simplify right side
    222,036.66x = 37,208,499,051.15
  5. Step 5: Solve for x
    x = 37,208,499,051.15/222,036.66
  6. Step 6: Final answer
    x = 167,578.18

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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.