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Finding the Fourth Proportional to 253,959.03, 380,792.75 and 76,413.51

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Solution

The fourth proportional to 253,959.03, 380,792.75 and 76,413.51 is: 114,576.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,959.03 : 380,792.75 = 76,413.51 : x
  2. Step 2: Convert to fraction form
    253,959.03/380,792.75 = 76,413.51/x
  3. Step 3: Cross multiply
    253,959.03x = 380,792.75 × 76,413.51
  4. Step 4: Simplify right side
    253,959.03x = 29,097,710,227.99
  5. Step 5: Solve for x
    x = 29,097,710,227.99/253,959.03
  6. Step 6: Final answer
    x = 114,576.40

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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.