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Finding the Fourth Proportional to 270,701.70, 406,052.55 and 186,720.90

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Solution

The fourth proportional to 270,701.70, 406,052.55 and 186,720.90 is: 280,081.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,701.70 : 406,052.55 = 186,720.90 : x
  2. Step 2: Convert to fraction form
    270,701.70/406,052.55 = 186,720.90/x
  3. Step 3: Cross multiply
    270,701.70x = 406,052.55 × 186,720.90
  4. Step 4: Simplify right side
    270,701.70x = 75,818,497,583.30
  5. Step 5: Solve for x
    x = 75,818,497,583.30/270,701.70
  6. Step 6: Final answer
    x = 280,081.35

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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.