Home / 282,628.68-389,637.86-225,462.03

Finding the Fourth Proportional to 282,628.68, 389,637.86 and 225,462.03

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Solution

The fourth proportional to 282,628.68, 389,637.86 and 225,462.03 is: 310,826.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,628.68 : 389,637.86 = 225,462.03 : x
  2. Step 2: Convert to fraction form
    282,628.68/389,637.86 = 225,462.03/x
  3. Step 3: Cross multiply
    282,628.68x = 389,637.86 × 225,462.03
  4. Step 4: Simplify right side
    282,628.68x = 87,848,541,753.15
  5. Step 5: Solve for x
    x = 87,848,541,753.15/282,628.68
  6. Step 6: Final answer
    x = 310,826.71

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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.