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Finding the Fourth Proportional to 272,309.80, 407,658.30 and 202,498.60

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Solution

The fourth proportional to 272,309.80, 407,658.30 and 202,498.60 is: 303,148.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,309.80 : 407,658.30 = 202,498.60 : x
  2. Step 2: Convert to fraction form
    272,309.80/407,658.30 = 202,498.60/x
  3. Step 3: Cross multiply
    272,309.80x = 407,658.30 × 202,498.60
  4. Step 4: Simplify right side
    272,309.80x = 82,550,235,028.38
  5. Step 5: Solve for x
    x = 82,550,235,028.38/272,309.80
  6. Step 6: Final answer
    x = 303,148.23

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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.