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Finding the Fourth Proportional to 272,298.80, 407,641.80 and 202,487.60

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Solution

The fourth proportional to 272,298.80, 407,641.80 and 202,487.60 is: 303,131.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,298.80 : 407,641.80 = 202,487.60 : x
  2. Step 2: Convert to fraction form
    272,298.80/407,641.80 = 202,487.60/x
  3. Step 3: Cross multiply
    272,298.80x = 407,641.80 × 202,487.60
  4. Step 4: Simplify right side
    272,298.80x = 82,542,409,741.68
  5. Step 5: Solve for x
    x = 82,542,409,741.68/272,298.80
  6. Step 6: Final answer
    x = 303,131.74

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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.