Home / 250,261.13-375,428.32-72,745.09

Finding the Fourth Proportional to 250,261.13, 375,428.32 and 72,745.09

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Solution

The fourth proportional to 250,261.13, 375,428.32 and 72,745.09 is: 109,128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,261.13 : 375,428.32 = 72,745.09 : x
  2. Step 2: Convert to fraction form
    250,261.13/375,428.32 = 72,745.09/x
  3. Step 3: Cross multiply
    250,261.13x = 375,428.32 × 72,745.09
  4. Step 4: Simplify right side
    250,261.13x = 27,310,565,806.52
  5. Step 5: Solve for x
    x = 27,310,565,806.52/250,261.13
  6. Step 6: Final answer
    x = 109,128.28

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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.