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Finding the Fourth Proportional to 270,187.08, 405,008.46 and 129,869.16

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Solution

The fourth proportional to 270,187.08, 405,008.46 and 129,869.16 is: 194,672.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,187.08 : 405,008.46 = 129,869.16 : x
  2. Step 2: Convert to fraction form
    270,187.08/405,008.46 = 129,869.16/x
  3. Step 3: Cross multiply
    270,187.08x = 405,008.46 × 129,869.16
  4. Step 4: Simplify right side
    270,187.08x = 52,598,108,493.09
  5. Step 5: Solve for x
    x = 52,598,108,493.09/270,187.08
  6. Step 6: Final answer
    x = 194,672.92

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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.