Home / 289,489.24-399,487.98-162,163.96

Finding the Fourth Proportional to 289,489.24, 399,487.98 and 162,163.96

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Solution

The fourth proportional to 289,489.24, 399,487.98 and 162,163.96 is: 223,782.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,489.24 : 399,487.98 = 162,163.96 : x
  2. Step 2: Convert to fraction form
    289,489.24/399,487.98 = 162,163.96/x
  3. Step 3: Cross multiply
    289,489.24x = 399,487.98 × 162,163.96
  4. Step 4: Simplify right side
    289,489.24x = 64,782,552,809.20
  5. Step 5: Solve for x
    x = 64,782,552,809.20/289,489.24
  6. Step 6: Final answer
    x = 223,782.25

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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.