Home / 321,619.16-443,823.10-178,392.53

Finding the Fourth Proportional to 321,619.16, 443,823.10 and 178,392.53

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Solution

The fourth proportional to 321,619.16, 443,823.10 and 178,392.53 is: 246,175.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,619.16 : 443,823.10 = 178,392.53 : x
  2. Step 2: Convert to fraction form
    321,619.16/443,823.10 = 178,392.53/x
  3. Step 3: Cross multiply
    321,619.16x = 443,823.10 × 178,392.53
  4. Step 4: Simplify right side
    321,619.16x = 79,174,723,848.51
  5. Step 5: Solve for x
    x = 79,174,723,848.51/321,619.16
  6. Step 6: Final answer
    x = 246,175.40

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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.