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Finding the Fourth Proportional to 272,010.80, 407,530.20 and 131,459.60

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Solution

The fourth proportional to 272,010.80, 407,530.20 and 131,459.60 is: 196,954.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,010.80 : 407,530.20 = 131,459.60 : x
  2. Step 2: Convert to fraction form
    272,010.80/407,530.20 = 131,459.60/x
  3. Step 3: Cross multiply
    272,010.80x = 407,530.20 × 131,459.60
  4. Step 4: Simplify right side
    272,010.80x = 53,573,757,079.92
  5. Step 5: Solve for x
    x = 53,573,757,079.92/272,010.80
  6. Step 6: Final answer
    x = 196,954.52

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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.