Home / 438,757.06-658,234.02-139,247.44

Finding the Fourth Proportional to 438,757.06, 658,234.02 and 139,247.44

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Solution

The fourth proportional to 438,757.06, 658,234.02 and 139,247.44 is: 208,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,757.06 : 658,234.02 = 139,247.44 : x
  2. Step 2: Convert to fraction form
    438,757.06/658,234.02 = 139,247.44/x
  3. Step 3: Cross multiply
    438,757.06x = 658,234.02 × 139,247.44
  4. Step 4: Simplify right side
    438,757.06x = 91,657,402,205.91
  5. Step 5: Solve for x
    x = 91,657,402,205.91/438,757.06
  6. Step 6: Final answer
    x = 208,902.40

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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.