Home / 289,949.67-399,221.19-263,377.62

Finding the Fourth Proportional to 289,949.67, 399,221.19 and 263,377.62

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Solution

The fourth proportional to 289,949.67, 399,221.19 and 263,377.62 is: 362,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,949.67 : 399,221.19 = 263,377.62 : x
  2. Step 2: Convert to fraction form
    289,949.67/399,221.19 = 263,377.62/x
  3. Step 3: Cross multiply
    289,949.67x = 399,221.19 × 263,377.62
  4. Step 4: Simplify right side
    289,949.67x = 105,145,926,875.77
  5. Step 5: Solve for x
    x = 105,145,926,875.77/289,949.67
  6. Step 6: Final answer
    x = 362,635.10

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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.