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Finding the Fourth Proportional to 275,774.56, 380,601.66 and 154,916.08

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Solution

The fourth proportional to 275,774.56, 380,601.66 and 154,916.08 is: 213,802.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,774.56 : 380,601.66 = 154,916.08 : x
  2. Step 2: Convert to fraction form
    275,774.56/380,601.66 = 154,916.08/x
  3. Step 3: Cross multiply
    275,774.56x = 380,601.66 × 154,916.08
  4. Step 4: Simplify right side
    275,774.56x = 58,961,317,208.69
  5. Step 5: Solve for x
    x = 58,961,317,208.69/275,774.56
  6. Step 6: Final answer
    x = 213,802.60

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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.