Home / 320,157.10-480,218.34-162,381.46

Finding the Fourth Proportional to 320,157.10, 480,218.34 and 162,381.46

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Solution

The fourth proportional to 320,157.10, 480,218.34 and 162,381.46 is: 243,563.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,157.10 : 480,218.34 = 162,381.46 : x
  2. Step 2: Convert to fraction form
    320,157.10/480,218.34 = 162,381.46/x
  3. Step 3: Cross multiply
    320,157.10x = 480,218.34 × 162,381.46
  4. Step 4: Simplify right side
    320,157.10x = 77,978,555,167.98
  5. Step 5: Solve for x
    x = 77,978,555,167.98/320,157.10
  6. Step 6: Final answer
    x = 243,563.41

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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.