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Finding the Fourth Proportional to 499,642.46, 749,193.81 and 259,160.21

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Solution

The fourth proportional to 499,642.46, 749,193.81 and 259,160.21 is: 388,600.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,642.46 : 749,193.81 = 259,160.21 : x
  2. Step 2: Convert to fraction form
    499,642.46/749,193.81 = 259,160.21/x
  3. Step 3: Cross multiply
    499,642.46x = 749,193.81 × 259,160.21
  4. Step 4: Simplify right side
    499,642.46x = 194,161,221,384.33
  5. Step 5: Solve for x
    x = 194,161,221,384.33/499,642.46
  6. Step 6: Final answer
    x = 388,600.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.