Home / 318,231.32-439,049.92-197,329.10

Finding the Fourth Proportional to 318,231.32, 439,049.92 and 197,329.10

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Solution

The fourth proportional to 318,231.32, 439,049.92 and 197,329.10 is: 272,246.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,231.32 : 439,049.92 = 197,329.10 : x
  2. Step 2: Convert to fraction form
    318,231.32/439,049.92 = 197,329.10/x
  3. Step 3: Cross multiply
    318,231.32x = 439,049.92 × 197,329.10
  4. Step 4: Simplify right side
    318,231.32x = 86,637,322,880.10
  5. Step 5: Solve for x
    x = 86,637,322,880.10/318,231.32
  6. Step 6: Final answer
    x = 272,246.38

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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.