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Finding the Fourth Proportional to 355,298.50, 490,291.27 and 194,154.87

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Solution

The fourth proportional to 355,298.50, 490,291.27 and 194,154.87 is: 267,922.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,298.50 : 490,291.27 = 194,154.87 : x
  2. Step 2: Convert to fraction form
    355,298.50/490,291.27 = 194,154.87/x
  3. Step 3: Cross multiply
    355,298.50x = 490,291.27 × 194,154.87
  4. Step 4: Simplify right side
    355,298.50x = 95,192,437,788.98
  5. Step 5: Solve for x
    x = 95,192,437,788.98/355,298.50
  6. Step 6: Final answer
    x = 267,922.43

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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.