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Finding the Fourth Proportional to 518,121.08, 777,396.72 and 248,113.16

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Solution

The fourth proportional to 518,121.08, 777,396.72 and 248,113.16 is: 372,272.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,121.08 : 777,396.72 = 248,113.16 : x
  2. Step 2: Convert to fraction form
    518,121.08/777,396.72 = 248,113.16/x
  3. Step 3: Cross multiply
    518,121.08x = 777,396.72 × 248,113.16
  4. Step 4: Simplify right side
    518,121.08x = 192,882,356,772.84
  5. Step 5: Solve for x
    x = 192,882,356,772.84/518,121.08
  6. Step 6: Final answer
    x = 372,272.75

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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.