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Finding the Fourth Proportional to 518,208.72, 777,756.15 and 202,887.06

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Solution

The fourth proportional to 518,208.72, 777,756.15 and 202,887.06 is: 304,504.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,208.72 : 777,756.15 = 202,887.06 : x
  2. Step 2: Convert to fraction form
    518,208.72/777,756.15 = 202,887.06/x
  3. Step 3: Cross multiply
    518,208.72x = 777,756.15 × 202,887.06
  4. Step 4: Simplify right side
    518,208.72x = 157,796,658,670.42
  5. Step 5: Solve for x
    x = 157,796,658,670.42/518,208.72
  6. Step 6: Final answer
    x = 304,504.06

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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.