Home / 222,015.18-306,376.38-121,413.18

Finding the Fourth Proportional to 222,015.18, 306,376.38 and 121,413.18

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Solution

The fourth proportional to 222,015.18, 306,376.38 and 121,413.18 is: 167,547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,015.18 : 306,376.38 = 121,413.18 : x
  2. Step 2: Convert to fraction form
    222,015.18/306,376.38 = 121,413.18/x
  3. Step 3: Cross multiply
    222,015.18x = 306,376.38 × 121,413.18
  4. Step 4: Simplify right side
    222,015.18x = 37,198,130,572.69
  5. Step 5: Solve for x
    x = 37,198,130,572.69/222,015.18
  6. Step 6: Final answer
    x = 167,547.69

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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.