Home / 442,627.20-663,796.32-143,037.36

Finding the Fourth Proportional to 442,627.20, 663,796.32 and 143,037.36

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Solution

The fourth proportional to 442,627.20, 663,796.32 and 143,037.36 is: 214,509.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,627.20 : 663,796.32 = 143,037.36 : x
  2. Step 2: Convert to fraction form
    442,627.20/663,796.32 = 143,037.36/x
  3. Step 3: Cross multiply
    442,627.20x = 663,796.32 × 143,037.36
  4. Step 4: Simplify right side
    442,627.20x = 94,947,673,190.52
  5. Step 5: Solve for x
    x = 94,947,673,190.52/442,627.20
  6. Step 6: Final answer
    x = 214,509.35

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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.