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Finding the Fourth Proportional to 438,801.40, 658,007.70 and 202,216.60

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Solution

The fourth proportional to 438,801.40, 658,007.70 and 202,216.60 is: 303,235.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,801.40 : 658,007.70 = 202,216.60 : x
  2. Step 2: Convert to fraction form
    438,801.40/658,007.70 = 202,216.60/x
  3. Step 3: Cross multiply
    438,801.40x = 658,007.70 × 202,216.60
  4. Step 4: Simplify right side
    438,801.40x = 133,060,079,867.82
  5. Step 5: Solve for x
    x = 133,060,079,867.82/438,801.40
  6. Step 6: Final answer
    x = 303,235.31

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1.5x scale

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.