Home / 289,448.62-399,434.43-162,123.82

Finding the Fourth Proportional to 289,448.62, 399,434.43 and 162,123.82

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Solution

The fourth proportional to 289,448.62, 399,434.43 and 162,123.82 is: 223,728.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,448.62 : 399,434.43 = 162,123.82 : x
  2. Step 2: Convert to fraction form
    289,448.62/399,434.43 = 162,123.82/x
  3. Step 3: Cross multiply
    289,448.62x = 399,434.43 × 162,123.82
  4. Step 4: Simplify right side
    289,448.62x = 64,757,835,631.12
  5. Step 5: Solve for x
    x = 64,757,835,631.12/289,448.62
  6. Step 6: Final answer
    x = 223,728.26

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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.