Home / 345,660.51-477,039.92-190,642.13

Finding the Fourth Proportional to 345,660.51, 477,039.92 and 190,642.13

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Solution

The fourth proportional to 345,660.51, 477,039.92 and 190,642.13 is: 263,101.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,660.51 : 477,039.92 = 190,642.13 : x
  2. Step 2: Convert to fraction form
    345,660.51/477,039.92 = 190,642.13/x
  3. Step 3: Cross multiply
    345,660.51x = 477,039.92 × 190,642.13
  4. Step 4: Simplify right side
    345,660.51x = 90,943,906,443.83
  5. Step 5: Solve for x
    x = 90,943,906,443.83/345,660.51
  6. Step 6: Final answer
    x = 263,101.81

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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.