Home / 258,848.16-388,213.92-100,995.36

Finding the Fourth Proportional to 258,848.16, 388,213.92 and 100,995.36

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Solution

The fourth proportional to 258,848.16, 388,213.92 and 100,995.36 is: 151,470.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,848.16 : 388,213.92 = 100,995.36 : x
  2. Step 2: Convert to fraction form
    258,848.16/388,213.92 = 100,995.36/x
  3. Step 3: Cross multiply
    258,848.16x = 388,213.92 × 100,995.36
  4. Step 4: Simplify right side
    258,848.16x = 39,207,804,607.41
  5. Step 5: Solve for x
    x = 39,207,804,607.41/258,848.16
  6. Step 6: Final answer
    x = 151,470.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.