Home / 282,164.24-389,371.14-154,829.78

Finding the Fourth Proportional to 282,164.24, 389,371.14 and 154,829.78

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Solution

The fourth proportional to 282,164.24, 389,371.14 and 154,829.78 is: 213,656.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,164.24 : 389,371.14 = 154,829.78 : x
  2. Step 2: Convert to fraction form
    282,164.24/389,371.14 = 154,829.78/x
  3. Step 3: Cross multiply
    282,164.24x = 389,371.14 × 154,829.78
  4. Step 4: Simplify right side
    282,164.24x = 60,286,247,944.55
  5. Step 5: Solve for x
    x = 60,286,247,944.55/282,164.24
  6. Step 6: Final answer
    x = 213,656.59

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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.