Home / 367,128.09-550,365.98-130,439.61

Finding the Fourth Proportional to 367,128.09, 550,365.98 and 130,439.61

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Solution

The fourth proportional to 367,128.09, 550,365.98 and 130,439.61 is: 195,543.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,128.09 : 550,365.98 = 130,439.61 : x
  2. Step 2: Convert to fraction form
    367,128.09/550,365.98 = 130,439.61/x
  3. Step 3: Cross multiply
    367,128.09x = 550,365.98 × 130,439.61
  4. Step 4: Simplify right side
    367,128.09x = 71,789,523,136.27
  5. Step 5: Solve for x
    x = 71,789,523,136.27/367,128.09
  6. Step 6: Final answer
    x = 195,543.53

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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.