Home / 438,670.04-658,028.46-139,174.58

Finding the Fourth Proportional to 438,670.04, 658,028.46 and 139,174.58

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Solution

The fourth proportional to 438,670.04, 658,028.46 and 139,174.58 is: 208,769.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,670.04 : 658,028.46 = 139,174.58 : x
  2. Step 2: Convert to fraction form
    438,670.04/658,028.46 = 139,174.58/x
  3. Step 3: Cross multiply
    438,670.04x = 658,028.46 × 139,174.58
  4. Step 4: Simplify right side
    438,670.04x = 91,580,834,548.55
  5. Step 5: Solve for x
    x = 91,580,834,548.55/438,670.04
  6. Step 6: Final answer
    x = 208,769.29

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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.