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Finding the Fourth Proportional to 270,695.12, 405,814.27 and 170,634.70

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Solution

The fourth proportional to 270,695.12, 405,814.27 and 170,634.70 is: 255,808.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,695.12 : 405,814.27 = 170,634.70 : x
  2. Step 2: Convert to fraction form
    270,695.12/405,814.27 = 170,634.70/x
  3. Step 3: Cross multiply
    270,695.12x = 405,814.27 × 170,634.70
  4. Step 4: Simplify right side
    270,695.12x = 69,245,996,617.79
  5. Step 5: Solve for x
    x = 69,245,996,617.79/270,695.12
  6. Step 6: Final answer
    x = 255,808.08

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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.