Home / 321,320.44-443,406.18-178,079.23

Finding the Fourth Proportional to 321,320.44, 443,406.18 and 178,079.23

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Solution

The fourth proportional to 321,320.44, 443,406.18 and 178,079.23 is: 245,740.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,320.44 : 443,406.18 = 178,079.23 : x
  2. Step 2: Convert to fraction form
    321,320.44/443,406.18 = 178,079.23/x
  3. Step 3: Cross multiply
    321,320.44x = 443,406.18 × 178,079.23
  4. Step 4: Simplify right side
    321,320.44x = 78,961,431,111.64
  5. Step 5: Solve for x
    x = 78,961,431,111.64/321,320.44
  6. Step 6: Final answer
    x = 245,740.45

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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.