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Finding the Fourth Proportional to 356,395.66, 491,842.20 and 203,475.22

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Solution

The fourth proportional to 356,395.66, 491,842.20 and 203,475.22 is: 280,805.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,395.66 : 491,842.20 = 203,475.22 : x
  2. Step 2: Convert to fraction form
    356,395.66/491,842.20 = 203,475.22/x
  3. Step 3: Cross multiply
    356,395.66x = 491,842.20 × 203,475.22
  4. Step 4: Simplify right side
    356,395.66x = 100,077,699,850.28
  5. Step 5: Solve for x
    x = 100,077,699,850.28/356,395.66
  6. Step 6: Final answer
    x = 280,805.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.