Home / 282,555.14-389,926.23-155,238.92

Finding the Fourth Proportional to 282,555.14, 389,926.23 and 155,238.92

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Solution

The fourth proportional to 282,555.14, 389,926.23 and 155,238.92 is: 214,229.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,555.14 : 389,926.23 = 155,238.92 : x
  2. Step 2: Convert to fraction form
    282,555.14/389,926.23 = 155,238.92/x
  3. Step 3: Cross multiply
    282,555.14x = 389,926.23 × 155,238.92
  4. Step 4: Simplify right side
    282,555.14x = 60,531,726,824.87
  5. Step 5: Solve for x
    x = 60,531,726,824.87/282,555.14
  6. Step 6: Final answer
    x = 214,229.78

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1.5x scale

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.