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Finding the Fourth Proportional to 355,313.34, 490,338.82 and 194,175.18

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Solution

The fourth proportional to 355,313.34, 490,338.82 and 194,175.18 is: 267,965.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,313.34 : 490,338.82 = 194,175.18 : x
  2. Step 2: Convert to fraction form
    355,313.34/490,338.82 = 194,175.18/x
  3. Step 3: Cross multiply
    355,313.34x = 490,338.82 × 194,175.18
  4. Step 4: Simplify right side
    355,313.34x = 95,211,628,634.49
  5. Step 5: Solve for x
    x = 95,211,628,634.49/355,313.34
  6. Step 6: Final answer
    x = 267,965.25

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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.