Home / 438,832.95-658,272.21-139,336.98

Finding the Fourth Proportional to 438,832.95, 658,272.21 and 139,336.98

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Solution

The fourth proportional to 438,832.95, 658,272.21 and 139,336.98 is: 209,012.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,832.95 : 658,272.21 = 139,336.98 : x
  2. Step 2: Convert to fraction form
    438,832.95/658,272.21 = 139,336.98/x
  3. Step 3: Cross multiply
    438,832.95x = 658,272.21 × 139,336.98
  4. Step 4: Simplify right side
    438,832.95x = 91,721,661,759.33
  5. Step 5: Solve for x
    x = 91,721,661,759.33/438,832.95
  6. Step 6: Final answer
    x = 209,012.70

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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.