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Finding the Fourth Proportional to 275,605.74, 380,331.45 and 154,747.26

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Solution

The fourth proportional to 275,605.74, 380,331.45 and 154,747.26 is: 213,548.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,605.74 : 380,331.45 = 154,747.26 : x
  2. Step 2: Convert to fraction form
    275,605.74/380,331.45 = 154,747.26/x
  3. Step 3: Cross multiply
    275,605.74x = 380,331.45 × 154,747.26
  4. Step 4: Simplify right side
    275,605.74x = 58,855,249,779.33
  5. Step 5: Solve for x
    x = 58,855,249,779.33/275,605.74
  6. Step 6: Final answer
    x = 213,548.71

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1.5x scale

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.