Home / 205,515.72-308,294.10-55,758.48

Finding the Fourth Proportional to 205,515.72, 308,294.10 and 55,758.48

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Solution

The fourth proportional to 205,515.72, 308,294.10 and 55,758.48 is: 83,643.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,515.72 : 308,294.10 = 55,758.48 : x
  2. Step 2: Convert to fraction form
    205,515.72/308,294.10 = 55,758.48/x
  3. Step 3: Cross multiply
    205,515.72x = 308,294.10 × 55,758.48
  4. Step 4: Simplify right side
    205,515.72x = 17,190,010,408.97
  5. Step 5: Solve for x
    x = 17,190,010,408.97/205,515.72
  6. Step 6: Final answer
    x = 83,643.29

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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.