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Finding the Fourth Proportional to 266,327.01, 399,009.20 and 166,439.25

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Solution

The fourth proportional to 266,327.01, 399,009.20 and 166,439.25 is: 249,358.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,327.01 : 399,009.20 = 166,439.25 : x
  2. Step 2: Convert to fraction form
    266,327.01/399,009.20 = 166,439.25/x
  3. Step 3: Cross multiply
    266,327.01x = 399,009.20 × 166,439.25
  4. Step 4: Simplify right side
    266,327.01x = 66,410,791,158.90
  5. Step 5: Solve for x
    x = 66,410,791,158.90/266,327.01
  6. Step 6: Final answer
    x = 249,358.08

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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.