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Finding the Fourth Proportional to 375,667.20, 518,620.32 and 255,450.24

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Solution

The fourth proportional to 375,667.20, 518,620.32 and 255,450.24 is: 352,657.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,667.20 : 518,620.32 = 255,450.24 : x
  2. Step 2: Convert to fraction form
    375,667.20/518,620.32 = 255,450.24/x
  3. Step 3: Cross multiply
    375,667.20x = 518,620.32 × 255,450.24
  4. Step 4: Simplify right side
    375,667.20x = 132,481,685,212.88
  5. Step 5: Solve for x
    x = 132,481,685,212.88/375,667.20
  6. Step 6: Final answer
    x = 352,657.05

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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.