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Finding the Fourth Proportional to 216,481.08, 298,873.08 and 135,977.52

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Solution

The fourth proportional to 216,481.08, 298,873.08 and 135,977.52 is: 187,730.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,481.08 : 298,873.08 = 135,977.52 : x
  2. Step 2: Convert to fraction form
    216,481.08/298,873.08 = 135,977.52/x
  3. Step 3: Cross multiply
    216,481.08x = 298,873.08 × 135,977.52
  4. Step 4: Simplify right side
    216,481.08x = 40,640,020,213.16
  5. Step 5: Solve for x
    x = 40,640,020,213.16/216,481.08
  6. Step 6: Final answer
    x = 187,730.13

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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.