Home / 438,822.40-658,039.20-202,237.60

Finding the Fourth Proportional to 438,822.40, 658,039.20 and 202,237.60

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Solution

The fourth proportional to 438,822.40, 658,039.20 and 202,237.60 is: 303,266.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,822.40 : 658,039.20 = 202,237.60 : x
  2. Step 2: Convert to fraction form
    438,822.40/658,039.20 = 202,237.60/x
  3. Step 3: Cross multiply
    438,822.40x = 658,039.20 × 202,237.60
  4. Step 4: Simplify right side
    438,822.40x = 133,080,268,513.92
  5. Step 5: Solve for x
    x = 133,080,268,513.92/438,822.40
  6. Step 6: Final answer
    x = 303,266.81

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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.