Home / 438,889.04-658,356.33-139,393.06

Finding the Fourth Proportional to 438,889.04, 658,356.33 and 139,393.06

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Solution

The fourth proportional to 438,889.04, 658,356.33 and 139,393.06 is: 209,096.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,889.04 : 658,356.33 = 139,393.06 : x
  2. Step 2: Convert to fraction form
    438,889.04/658,356.33 = 139,393.06/x
  3. Step 3: Cross multiply
    438,889.04x = 658,356.33 × 139,393.06
  4. Step 4: Simplify right side
    438,889.04x = 91,770,303,409.07
  5. Step 5: Solve for x
    x = 91,770,303,409.07/438,889.04
  6. Step 6: Final answer
    x = 209,096.82

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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.