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Finding the Fourth Proportional to 306,405.01, 422,864.46 and 170,464.57

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Solution

The fourth proportional to 306,405.01, 422,864.46 and 170,464.57 is: 235,255.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,405.01 : 422,864.46 = 170,464.57 : x
  2. Step 2: Convert to fraction form
    306,405.01/422,864.46 = 170,464.57/x
  3. Step 3: Cross multiply
    306,405.01x = 422,864.46 × 170,464.57
  4. Step 4: Simplify right side
    306,405.01x = 72,083,408,342.18
  5. Step 5: Solve for x
    x = 72,083,408,342.18/306,405.01
  6. Step 6: Final answer
    x = 235,255.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.