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Finding the Fourth Proportional to 356,036, 491,384.64 and 203,074.52

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Solution

The fourth proportional to 356,036, 491,384.64 and 203,074.52 is: 280,274.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,036 : 491,384.64 = 203,074.52 : x
  2. Step 2: Convert to fraction form
    356,036/491,384.64 = 203,074.52/x
  3. Step 3: Cross multiply
    356,036x = 491,384.64 × 203,074.52
  4. Step 4: Simplify right side
    356,036x = 99,787,699,903.37
  5. Step 5: Solve for x
    x = 99,787,699,903.37/356,036
  6. Step 6: Final answer
    x = 280,274.19

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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.