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Finding the Fourth Proportional to 170,899.70, 256,394.35 and 65,722.10

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Solution

The fourth proportional to 170,899.70, 256,394.35 and 65,722.10 is: 98,600.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,899.70 : 256,394.35 = 65,722.10 : x
  2. Step 2: Convert to fraction form
    170,899.70/256,394.35 = 65,722.10/x
  3. Step 3: Cross multiply
    170,899.70x = 256,394.35 × 65,722.10
  4. Step 4: Simplify right side
    170,899.70x = 16,850,775,110.14
  5. Step 5: Solve for x
    x = 16,850,775,110.14/170,899.70
  6. Step 6: Final answer
    x = 98,600.38

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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.