Home / 266,848.60-400,238.34-100,615

Finding the Fourth Proportional to 266,848.60, 400,238.34 and 100,615

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Solution

The fourth proportional to 266,848.60, 400,238.34 and 100,615 is: 150,909.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,848.60 : 400,238.34 = 100,615 : x
  2. Step 2: Convert to fraction form
    266,848.60/400,238.34 = 100,615/x
  3. Step 3: Cross multiply
    266,848.60x = 400,238.34 × 100,615
  4. Step 4: Simplify right side
    266,848.60x = 40,269,980,579.10
  5. Step 5: Solve for x
    x = 40,269,980,579.10/266,848.60
  6. Step 6: Final answer
    x = 150,909.47

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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.