Home / 289,318.23-399,223.22-161,973.27

Finding the Fourth Proportional to 289,318.23, 399,223.22 and 161,973.27

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Solution

The fourth proportional to 289,318.23, 399,223.22 and 161,973.27 is: 223,502.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,318.23 : 399,223.22 = 161,973.27 : x
  2. Step 2: Convert to fraction form
    289,318.23/399,223.22 = 161,973.27/x
  3. Step 3: Cross multiply
    289,318.23x = 399,223.22 × 161,973.27
  4. Step 4: Simplify right side
    289,318.23x = 64,663,489,593.46
  5. Step 5: Solve for x
    x = 64,663,489,593.46/289,318.23
  6. Step 6: Final answer
    x = 223,502.99

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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.