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Finding the Fourth Proportional to 202,129.90, 303,413.55 and 113,556.40

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Solution

The fourth proportional to 202,129.90, 303,413.55 and 113,556.40 is: 170,457.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,129.90 : 303,413.55 = 113,556.40 : x
  2. Step 2: Convert to fraction form
    202,129.90/303,413.55 = 113,556.40/x
  3. Step 3: Cross multiply
    202,129.90x = 303,413.55 × 113,556.40
  4. Step 4: Simplify right side
    202,129.90x = 34,454,550,449.22
  5. Step 5: Solve for x
    x = 34,454,550,449.22/202,129.90
  6. Step 6: Final answer
    x = 170,457.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.