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Finding the Fourth Proportional to 851,097.72, 1,276,690.32 and 220,017

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Solution

The fourth proportional to 851,097.72, 1,276,690.32 and 220,017 is: 330,036.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,097.72 : 1,276,690.32 = 220,017 : x
  2. Step 2: Convert to fraction form
    851,097.72/1,276,690.32 = 220,017/x
  3. Step 3: Cross multiply
    851,097.72x = 1,276,690.32 × 220,017
  4. Step 4: Simplify right side
    851,097.72x = 280,893,574,135.44
  5. Step 5: Solve for x
    x = 280,893,574,135.44/851,097.72
  6. Step 6: Final answer
    x = 330,036.81

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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.