Home / 321,356.16-443,498.04-178,161.12

Finding the Fourth Proportional to 321,356.16, 443,498.04 and 178,161.12

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Solution

The fourth proportional to 321,356.16, 443,498.04 and 178,161.12 is: 245,877.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,356.16 : 443,498.04 = 178,161.12 : x
  2. Step 2: Convert to fraction form
    321,356.16/443,498.04 = 178,161.12/x
  3. Step 3: Cross multiply
    321,356.16x = 443,498.04 × 178,161.12
  4. Step 4: Simplify right side
    321,356.16x = 79,014,107,524.20
  5. Step 5: Solve for x
    x = 79,014,107,524.20/321,356.16
  6. Step 6: Final answer
    x = 245,877.06

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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.