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Finding the Fourth Proportional to 266,103.30, 399,154.95 and 171,624.90

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Solution

The fourth proportional to 266,103.30, 399,154.95 and 171,624.90 is: 257,437.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,103.30 : 399,154.95 = 171,624.90 : x
  2. Step 2: Convert to fraction form
    266,103.30/399,154.95 = 171,624.90/x
  3. Step 3: Cross multiply
    266,103.30x = 399,154.95 × 171,624.90
  4. Step 4: Simplify right side
    266,103.30x = 68,504,928,378.26
  5. Step 5: Solve for x
    x = 68,504,928,378.26/266,103.30
  6. Step 6: Final answer
    x = 257,437.35

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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.