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Finding the Fourth Proportional to 405,027.20, 606,957.60 and 180,203.60

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Solution

The fourth proportional to 405,027.20, 606,957.60 and 180,203.60 is: 270,045.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,027.20 : 606,957.60 = 180,203.60 : x
  2. Step 2: Convert to fraction form
    405,027.20/606,957.60 = 180,203.60/x
  3. Step 3: Cross multiply
    405,027.20x = 606,957.60 × 180,203.60
  4. Step 4: Simplify right side
    405,027.20x = 109,375,944,567.36
  5. Step 5: Solve for x
    x = 109,375,944,567.36/405,027.20
  6. Step 6: Final answer
    x = 270,045.92

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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.