Home / 438,807.40-658,016.70-202,222.60

Finding the Fourth Proportional to 438,807.40, 658,016.70 and 202,222.60

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Solution

The fourth proportional to 438,807.40, 658,016.70 and 202,222.60 is: 303,244.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,807.40 : 658,016.70 = 202,222.60 : x
  2. Step 2: Convert to fraction form
    438,807.40/658,016.70 = 202,222.60/x
  3. Step 3: Cross multiply
    438,807.40x = 658,016.70 × 202,222.60
  4. Step 4: Simplify right side
    438,807.40x = 133,065,847,917.42
  5. Step 5: Solve for x
    x = 133,065,847,917.42/438,807.40
  6. Step 6: Final answer
    x = 303,244.31

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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.