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Finding the Fourth Proportional to 406,057.20, 609,085.80 and 181,330.80

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Solution

The fourth proportional to 406,057.20, 609,085.80 and 181,330.80 is: 271,996.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,057.20 : 609,085.80 = 181,330.80 : x
  2. Step 2: Convert to fraction form
    406,057.20/609,085.80 = 181,330.80/x
  3. Step 3: Cross multiply
    406,057.20x = 609,085.80 × 181,330.80
  4. Step 4: Simplify right side
    406,057.20x = 110,446,015,382.64
  5. Step 5: Solve for x
    x = 110,446,015,382.64/406,057.20
  6. Step 6: Final answer
    x = 271,996.20

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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.