Home / 260,470.98-390,735-82,936.26

Finding the Fourth Proportional to 260,470.98, 390,735 and 82,936.26

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Solution

The fourth proportional to 260,470.98, 390,735 and 82,936.26 is: 124,413.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,470.98 : 390,735 = 82,936.26 : x
  2. Step 2: Convert to fraction form
    260,470.98/390,735 = 82,936.26/x
  3. Step 3: Cross multiply
    260,470.98x = 390,735 × 82,936.26
  4. Step 4: Simplify right side
    260,470.98x = 32,406,099,551.10
  5. Step 5: Solve for x
    x = 32,406,099,551.10/260,470.98
  6. Step 6: Final answer
    x = 124,413.47

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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.