Home / 231,536.72-319,429.32-145,445.12

Finding the Fourth Proportional to 231,536.72, 319,429.32 and 145,445.12

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Solution

The fourth proportional to 231,536.72, 319,429.32 and 145,445.12 is: 200,656.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,536.72 : 319,429.32 = 145,445.12 : x
  2. Step 2: Convert to fraction form
    231,536.72/319,429.32 = 145,445.12/x
  3. Step 3: Cross multiply
    231,536.72x = 319,429.32 × 145,445.12
  4. Step 4: Simplify right side
    231,536.72x = 46,459,435,778.92
  5. Step 5: Solve for x
    x = 46,459,435,778.92/231,536.72
  6. Step 6: Final answer
    x = 200,656.88

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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.