Home / 281,642.56-388,664.19-152,578.07

Finding the Fourth Proportional to 281,642.56, 388,664.19 and 152,578.07

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Solution

The fourth proportional to 281,642.56, 388,664.19 and 152,578.07 is: 210,556.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,642.56 : 388,664.19 = 152,578.07 : x
  2. Step 2: Convert to fraction form
    281,642.56/388,664.19 = 152,578.07/x
  3. Step 3: Cross multiply
    281,642.56x = 388,664.19 × 152,578.07
  4. Step 4: Simplify right side
    281,642.56x = 59,301,631,988.31
  5. Step 5: Solve for x
    x = 59,301,631,988.31/281,642.56
  6. Step 6: Final answer
    x = 210,556.36

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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.