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Finding the Fourth Proportional to 270,346.43, 405,477.11 and 170,200.05

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Solution

The fourth proportional to 270,346.43, 405,477.11 and 170,200.05 is: 255,273.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,346.43 : 405,477.11 = 170,200.05 : x
  2. Step 2: Convert to fraction form
    270,346.43/405,477.11 = 170,200.05/x
  3. Step 3: Cross multiply
    270,346.43x = 405,477.11 × 170,200.05
  4. Step 4: Simplify right side
    270,346.43x = 69,012,223,544.86
  5. Step 5: Solve for x
    x = 69,012,223,544.86/270,346.43
  6. Step 6: Final answer
    x = 255,273.30

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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.