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Finding the Fourth Proportional to 266,748.60, 399,585.30 and 166,601.40

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Solution

The fourth proportional to 266,748.60, 399,585.30 and 166,601.40 is: 249,566.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,748.60 : 399,585.30 = 166,601.40 : x
  2. Step 2: Convert to fraction form
    266,748.60/399,585.30 = 166,601.40/x
  3. Step 3: Cross multiply
    266,748.60x = 399,585.30 × 166,601.40
  4. Step 4: Simplify right side
    266,748.60x = 66,571,470,399.42
  5. Step 5: Solve for x
    x = 66,571,470,399.42/266,748.60
  6. Step 6: Final answer
    x = 249,566.33

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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.