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Finding the Fourth Proportional to 342,431.03, 472,568.73 and 189,466.73

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Solution

The fourth proportional to 342,431.03, 472,568.73 and 189,466.73 is: 261,471.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,431.03 : 472,568.73 = 189,466.73 : x
  2. Step 2: Convert to fraction form
    342,431.03/472,568.73 = 189,466.73/x
  3. Step 3: Cross multiply
    342,431.03x = 472,568.73 × 189,466.73
  4. Step 4: Simplify right side
    342,431.03x = 89,536,049,610.51
  5. Step 5: Solve for x
    x = 89,536,049,610.51/342,431.03
  6. Step 6: Final answer
    x = 261,471.78

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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.