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Finding the Fourth Proportional to 270,020.66, 405,054.05 and 70,341.08

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Solution

The fourth proportional to 270,020.66, 405,054.05 and 70,341.08 is: 105,517.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,020.66 : 405,054.05 = 70,341.08 : x
  2. Step 2: Convert to fraction form
    270,020.66/405,054.05 = 70,341.08/x
  3. Step 3: Cross multiply
    270,020.66x = 405,054.05 × 70,341.08
  4. Step 4: Simplify right side
    270,020.66x = 28,491,936,958.40
  5. Step 5: Solve for x
    x = 28,491,936,958.40/270,020.66
  6. Step 6: Final answer
    x = 105,517.62

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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.