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Finding the Fourth Proportional to 550,686.70, 826,108.87 and 243,281.07

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Solution

The fourth proportional to 550,686.70, 826,108.87 and 243,281.07 is: 364,956.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,686.70 : 826,108.87 = 243,281.07 : x
  2. Step 2: Convert to fraction form
    550,686.70/826,108.87 = 243,281.07/x
  3. Step 3: Cross multiply
    550,686.70x = 826,108.87 × 243,281.07
  4. Step 4: Simplify right side
    550,686.70x = 200,976,644,483.14
  5. Step 5: Solve for x
    x = 200,976,644,483.14/550,686.70
  6. Step 6: Final answer
    x = 364,956.42

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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.