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Finding the Fourth Proportional to 518,134.83, 777,307.02 and 218,616.04

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Solution

The fourth proportional to 518,134.83, 777,307.02 and 218,616.04 is: 327,968.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,134.83 : 777,307.02 = 218,616.04 : x
  2. Step 2: Convert to fraction form
    518,134.83/777,307.02 = 218,616.04/x
  3. Step 3: Cross multiply
    518,134.83x = 777,307.02 × 218,616.04
  4. Step 4: Simplify right side
    518,134.83x = 169,931,782,576.60
  5. Step 5: Solve for x
    x = 169,931,782,576.60/518,134.83
  6. Step 6: Final answer
    x = 327,968.27

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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.