Home / 320,830.26-442,740.39-177,587.22

Finding the Fourth Proportional to 320,830.26, 442,740.39 and 177,587.22

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Solution

The fourth proportional to 320,830.26, 442,740.39 and 177,587.22 is: 245,067.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,830.26 : 442,740.39 = 177,587.22 : x
  2. Step 2: Convert to fraction form
    320,830.26/442,740.39 = 177,587.22/x
  3. Step 3: Cross multiply
    320,830.26x = 442,740.39 × 177,587.22
  4. Step 4: Simplify right side
    320,830.26x = 78,625,035,041.82
  5. Step 5: Solve for x
    x = 78,625,035,041.82/320,830.26
  6. Step 6: Final answer
    x = 245,067.39

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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.