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Finding the Fourth Proportional to 266,381.10, 367,520.63 and 189,912.65

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Solution

The fourth proportional to 266,381.10, 367,520.63 and 189,912.65 is: 262,018.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,381.10 : 367,520.63 = 189,912.65 : x
  2. Step 2: Convert to fraction form
    266,381.10/367,520.63 = 189,912.65/x
  3. Step 3: Cross multiply
    266,381.10x = 367,520.63 × 189,912.65
  4. Step 4: Simplify right side
    266,381.10x = 69,796,813,985.80
  5. Step 5: Solve for x
    x = 69,796,813,985.80/266,381.10
  6. Step 6: Final answer
    x = 262,018.64

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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.