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Finding the Fourth Proportional to 555,206.80, 766,185.24 and 300,557.80

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Solution

The fourth proportional to 555,206.80, 766,185.24 and 300,557.80 is: 414,769.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,206.80 : 766,185.24 = 300,557.80 : x
  2. Step 2: Convert to fraction form
    555,206.80/766,185.24 = 300,557.80/x
  3. Step 3: Cross multiply
    555,206.80x = 766,185.24 × 300,557.80
  4. Step 4: Simplify right side
    555,206.80x = 230,282,950,126.87
  5. Step 5: Solve for x
    x = 230,282,950,126.87/555,206.80
  6. Step 6: Final answer
    x = 414,769.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.