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Finding the Fourth Proportional to 518,106.11, 776,034.27 and 251,305.88

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Solution

The fourth proportional to 518,106.11, 776,034.27 and 251,305.88 is: 376,413.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,106.11 : 776,034.27 = 251,305.88 : x
  2. Step 2: Convert to fraction form
    518,106.11/776,034.27 = 251,305.88/x
  3. Step 3: Cross multiply
    518,106.11x = 776,034.27 × 251,305.88
  4. Step 4: Simplify right side
    518,106.11x = 195,021,971,252.34
  5. Step 5: Solve for x
    x = 195,021,971,252.34/518,106.11
  6. Step 6: Final answer
    x = 376,413.19

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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.