Home / 351,531.89-485,111.59-190,383.25

Finding the Fourth Proportional to 351,531.89, 485,111.59 and 190,383.25

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Solution

The fourth proportional to 351,531.89, 485,111.59 and 190,383.25 is: 262,727.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,531.89 : 485,111.59 = 190,383.25 : x
  2. Step 2: Convert to fraction form
    351,531.89/485,111.59 = 190,383.25/x
  3. Step 3: Cross multiply
    351,531.89x = 485,111.59 × 190,383.25
  4. Step 4: Simplify right side
    351,531.89x = 92,357,117,739.39
  5. Step 5: Solve for x
    x = 92,357,117,739.39/351,531.89
  6. Step 6: Final answer
    x = 262,727.57

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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.