Home / 320,392.20-442,133.40-177,148.56

Finding the Fourth Proportional to 320,392.20, 442,133.40 and 177,148.56

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Solution

The fourth proportional to 320,392.20, 442,133.40 and 177,148.56 is: 244,460.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,392.20 : 442,133.40 = 177,148.56 : x
  2. Step 2: Convert to fraction form
    320,392.20/442,133.40 = 177,148.56/x
  3. Step 3: Cross multiply
    320,392.20x = 442,133.40 × 177,148.56
  4. Step 4: Simplify right side
    320,392.20x = 78,323,295,137.90
  5. Step 5: Solve for x
    x = 78,323,295,137.90/320,392.20
  6. Step 6: Final answer
    x = 244,460.68

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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.