Home / 258,828.95-388,281.67-132,540.59

Finding the Fourth Proportional to 258,828.95, 388,281.67 and 132,540.59

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Solution

The fourth proportional to 258,828.95, 388,281.67 and 132,540.59 is: 198,830.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,828.95 : 388,281.67 = 132,540.59 : x
  2. Step 2: Convert to fraction form
    258,828.95/388,281.67 = 132,540.59/x
  3. Step 3: Cross multiply
    258,828.95x = 388,281.67 × 132,540.59
  4. Step 4: Simplify right side
    258,828.95x = 51,463,079,355.23
  5. Step 5: Solve for x
    x = 51,463,079,355.23/258,828.95
  6. Step 6: Final answer
    x = 198,830.46

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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.