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Finding the Fourth Proportional to 216,040.80, 323,907.60 and 82,869.60

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Solution

The fourth proportional to 216,040.80, 323,907.60 and 82,869.60 is: 124,245.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,040.80 : 323,907.60 = 82,869.60 : x
  2. Step 2: Convert to fraction form
    216,040.80/323,907.60 = 82,869.60/x
  3. Step 3: Cross multiply
    216,040.80x = 323,907.60 × 82,869.60
  4. Step 4: Simplify right side
    216,040.80x = 26,842,093,248.96
  5. Step 5: Solve for x
    x = 26,842,093,248.96/216,040.80
  6. Step 6: Final answer
    x = 124,245.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.