Home / 320,986.13-442,884.78-190,097.66

Finding the Fourth Proportional to 320,986.13, 442,884.78 and 190,097.66

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Solution

The fourth proportional to 320,986.13, 442,884.78 and 190,097.66 is: 262,289.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,986.13 : 442,884.78 = 190,097.66 : x
  2. Step 2: Convert to fraction form
    320,986.13/442,884.78 = 190,097.66/x
  3. Step 3: Cross multiply
    320,986.13x = 442,884.78 × 190,097.66
  4. Step 4: Simplify right side
    320,986.13x = 84,191,361,434.83
  5. Step 5: Solve for x
    x = 84,191,361,434.83/320,986.13
  6. Step 6: Final answer
    x = 262,289.72

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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.