Home / 445,200.35-668,021.99-355,335.15

Finding the Fourth Proportional to 445,200.35, 668,021.99 and 355,335.15

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Solution

The fourth proportional to 445,200.35, 668,021.99 and 355,335.15 is: 533,179.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,200.35 : 668,021.99 = 355,335.15 : x
  2. Step 2: Convert to fraction form
    445,200.35/668,021.99 = 355,335.15/x
  3. Step 3: Cross multiply
    445,200.35x = 668,021.99 × 355,335.15
  4. Step 4: Simplify right side
    445,200.35x = 237,371,694,748.36
  5. Step 5: Solve for x
    x = 237,371,694,748.36/445,200.35
  6. Step 6: Final answer
    x = 533,179.49

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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.