Home / 289,660.10-399,747.33-162,343.89

Finding the Fourth Proportional to 289,660.10, 399,747.33 and 162,343.89

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Solution

The fourth proportional to 289,660.10, 399,747.33 and 162,343.89 is: 224,043.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,660.10 : 399,747.33 = 162,343.89 : x
  2. Step 2: Convert to fraction form
    289,660.10/399,747.33 = 162,343.89/x
  3. Step 3: Cross multiply
    289,660.10x = 399,747.33 × 162,343.89
  4. Step 4: Simplify right side
    289,660.10x = 64,896,536,569.31
  5. Step 5: Solve for x
    x = 64,896,536,569.31/289,660.10
  6. Step 6: Final answer
    x = 224,043.76

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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.