Home / 282,163.24-389,369.76-154,828.78

Finding the Fourth Proportional to 282,163.24, 389,369.76 and 154,828.78

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Solution

The fourth proportional to 282,163.24, 389,369.76 and 154,828.78 is: 213,655.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,163.24 : 389,369.76 = 154,828.78 : x
  2. Step 2: Convert to fraction form
    282,163.24/389,369.76 = 154,828.78/x
  3. Step 3: Cross multiply
    282,163.24x = 389,369.76 × 154,828.78
  4. Step 4: Simplify right side
    282,163.24x = 60,285,644,909.69
  5. Step 5: Solve for x
    x = 60,285,644,909.69/282,163.24
  6. Step 6: Final answer
    x = 213,655.21

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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.