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Finding the Fourth Proportional to 518,003.36, 776,800.83 and 251,685.08

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Solution

The fourth proportional to 518,003.36, 776,800.83 and 251,685.08 is: 377,428.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,003.36 : 776,800.83 = 251,685.08 : x
  2. Step 2: Convert to fraction form
    518,003.36/776,800.83 = 251,685.08/x
  3. Step 3: Cross multiply
    518,003.36x = 776,800.83 × 251,685.08
  4. Step 4: Simplify right side
    518,003.36x = 195,509,179,042.62
  5. Step 5: Solve for x
    x = 195,509,179,042.62/518,003.36
  6. Step 6: Final answer
    x = 377,428.40

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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.