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Finding the Fourth Proportional to 270,410.90, 405,616.35 and 170,683.70

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Solution

The fourth proportional to 270,410.90, 405,616.35 and 170,683.70 is: 256,025.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,410.90 : 405,616.35 = 170,683.70 : x
  2. Step 2: Convert to fraction form
    270,410.90/405,616.35 = 170,683.70/x
  3. Step 3: Cross multiply
    270,410.90x = 405,616.35 × 170,683.70
  4. Step 4: Simplify right side
    270,410.90x = 69,232,099,398.50
  5. Step 5: Solve for x
    x = 69,232,099,398.50/270,410.90
  6. Step 6: Final answer
    x = 256,025.55

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1.5x scale

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.