Home / 438,747.06-658,219.02-139,237.41

Finding the Fourth Proportional to 438,747.06, 658,219.02 and 139,237.41

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Solution

The fourth proportional to 438,747.06, 658,219.02 and 139,237.41 is: 208,887.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,747.06 : 658,219.02 = 139,237.41 : x
  2. Step 2: Convert to fraction form
    438,747.06/658,219.02 = 139,237.41/x
  3. Step 3: Cross multiply
    438,747.06x = 658,219.02 × 139,237.41
  4. Step 4: Simplify right side
    438,747.06x = 91,648,711,557.54
  5. Step 5: Solve for x
    x = 91,648,711,557.54/438,747.06
  6. Step 6: Final answer
    x = 208,887.35

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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.