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Finding the Fourth Proportional to 385,716.96, 576,229.83 and 249,672.78

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Solution

The fourth proportional to 385,716.96, 576,229.83 and 249,672.78 is: 372,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,716.96 : 576,229.83 = 249,672.78 : x
  2. Step 2: Convert to fraction form
    385,716.96/576,229.83 = 249,672.78/x
  3. Step 3: Cross multiply
    385,716.96x = 576,229.83 × 249,672.78
  4. Step 4: Simplify right side
    385,716.96x = 143,868,903,575.03
  5. Step 5: Solve for x
    x = 143,868,903,575.03/385,716.96
  6. Step 6: Final answer
    x = 372,990.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.