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Finding the Fourth Proportional to 266,145.64, 367,281.72 and 145,287.04

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Solution

The fourth proportional to 266,145.64, 367,281.72 and 145,287.04 is: 200,496.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,145.64 : 367,281.72 = 145,287.04 : x
  2. Step 2: Convert to fraction form
    266,145.64/367,281.72 = 145,287.04/x
  3. Step 3: Cross multiply
    266,145.64x = 367,281.72 × 145,287.04
  4. Step 4: Simplify right side
    266,145.64x = 53,361,273,944.91
  5. Step 5: Solve for x
    x = 53,361,273,944.91/266,145.64
  6. Step 6: Final answer
    x = 200,496.52

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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.