Home / 321,443.73-443,603.13-178,195.23

Finding the Fourth Proportional to 321,443.73, 443,603.13 and 178,195.23

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Solution

The fourth proportional to 321,443.73, 443,603.13 and 178,195.23 is: 245,915.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,443.73 : 443,603.13 = 178,195.23 : x
  2. Step 2: Convert to fraction form
    321,443.73/443,603.13 = 178,195.23/x
  3. Step 3: Cross multiply
    321,443.73x = 443,603.13 × 178,195.23
  4. Step 4: Simplify right side
    321,443.73x = 79,047,961,779.07
  5. Step 5: Solve for x
    x = 79,047,961,779.07/321,443.73
  6. Step 6: Final answer
    x = 245,915.39

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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.