Home / 438,668.04-658,025.46-139,172.58

Finding the Fourth Proportional to 438,668.04, 658,025.46 and 139,172.58

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Solution

The fourth proportional to 438,668.04, 658,025.46 and 139,172.58 is: 208,766.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,668.04 : 658,025.46 = 139,172.58 : x
  2. Step 2: Convert to fraction form
    438,668.04/658,025.46 = 139,172.58/x
  3. Step 3: Cross multiply
    438,668.04x = 658,025.46 × 139,172.58
  4. Step 4: Simplify right side
    438,668.04x = 91,579,100,973.89
  5. Step 5: Solve for x
    x = 91,579,100,973.89/438,668.04
  6. Step 6: Final answer
    x = 208,766.29

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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.