Home / 320,052.61-480,380.24-162,394.21

Finding the Fourth Proportional to 320,052.61, 480,380.24 and 162,394.21

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Solution

The fourth proportional to 320,052.61, 480,380.24 and 162,394.21 is: 243,744.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,052.61 : 480,380.24 = 162,394.21 : x
  2. Step 2: Convert to fraction form
    320,052.61/480,380.24 = 162,394.21/x
  3. Step 3: Cross multiply
    320,052.61x = 480,380.24 × 162,394.21
  4. Step 4: Simplify right side
    320,052.61x = 78,010,969,574.41
  5. Step 5: Solve for x
    x = 78,010,969,574.41/320,052.61
  6. Step 6: Final answer
    x = 243,744.21

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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.