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Finding the Fourth Proportional to 551,405.22, 827,218.53 and 251,805.35

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Solution

The fourth proportional to 551,405.22, 827,218.53 and 251,805.35 is: 377,758.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,405.22 : 827,218.53 = 251,805.35 : x
  2. Step 2: Convert to fraction form
    551,405.22/827,218.53 = 251,805.35/x
  3. Step 3: Cross multiply
    551,405.22x = 827,218.53 × 251,805.35
  4. Step 4: Simplify right side
    551,405.22x = 208,298,047,337.04
  5. Step 5: Solve for x
    x = 208,298,047,337.04/551,405.22
  6. Step 6: Final answer
    x = 377,758.57

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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.