Home / 296,973.27-445,459.91-86,628.15

Finding the Fourth Proportional to 296,973.27, 445,459.91 and 86,628.15

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Solution

The fourth proportional to 296,973.27, 445,459.91 and 86,628.15 is: 129,942.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,973.27 : 445,459.91 = 86,628.15 : x
  2. Step 2: Convert to fraction form
    296,973.27/445,459.91 = 86,628.15/x
  3. Step 3: Cross multiply
    296,973.27x = 445,459.91 × 86,628.15
  4. Step 4: Simplify right side
    296,973.27x = 38,589,367,469.33
  5. Step 5: Solve for x
    x = 38,589,367,469.33/296,973.27
  6. Step 6: Final answer
    x = 129,942.23

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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.