Home / 320,156.48-480,217.41-162,380.84

Finding the Fourth Proportional to 320,156.48, 480,217.41 and 162,380.84

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Solution

The fourth proportional to 320,156.48, 480,217.41 and 162,380.84 is: 243,562.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,156.48 : 480,217.41 = 162,380.84 : x
  2. Step 2: Convert to fraction form
    320,156.48/480,217.41 = 162,380.84/x
  3. Step 3: Cross multiply
    320,156.48x = 480,217.41 × 162,380.84
  4. Step 4: Simplify right side
    320,156.48x = 77,978,104,017.34
  5. Step 5: Solve for x
    x = 77,978,104,017.34/320,156.48
  6. Step 6: Final answer
    x = 243,562.47

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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.