Home / 202,287.90-303,431.85-131,429.10

Finding the Fourth Proportional to 202,287.90, 303,431.85 and 131,429.10

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Solution

The fourth proportional to 202,287.90, 303,431.85 and 131,429.10 is: 197,143.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,287.90 : 303,431.85 = 131,429.10 : x
  2. Step 2: Convert to fraction form
    202,287.90/303,431.85 = 131,429.10/x
  3. Step 3: Cross multiply
    202,287.90x = 303,431.85 × 131,429.10
  4. Step 4: Simplify right side
    202,287.90x = 39,879,774,956.84
  5. Step 5: Solve for x
    x = 39,879,774,956.84/202,287.90
  6. Step 6: Final answer
    x = 197,143.65

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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.