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Finding the Fourth Proportional to 555,206.22, 766,187.03 and 300,557.40

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Solution

The fourth proportional to 555,206.22, 766,187.03 and 300,557.40 is: 414,770.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,206.22 : 766,187.03 = 300,557.40 : x
  2. Step 2: Convert to fraction form
    555,206.22/766,187.03 = 300,557.40/x
  3. Step 3: Cross multiply
    555,206.22x = 766,187.03 × 300,557.40
  4. Step 4: Simplify right side
    555,206.22x = 230,283,180,147.74
  5. Step 5: Solve for x
    x = 230,283,180,147.74/555,206.22
  6. Step 6: Final answer
    x = 414,770.53

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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.