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Finding the Fourth Proportional to 275,776.92, 380,551.68 and 154,938.33

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Solution

The fourth proportional to 275,776.92, 380,551.68 and 154,938.33 is: 213,803.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,776.92 : 380,551.68 = 154,938.33 : x
  2. Step 2: Convert to fraction form
    275,776.92/380,551.68 = 154,938.33/x
  3. Step 3: Cross multiply
    275,776.92x = 380,551.68 × 154,938.33
  4. Step 4: Simplify right side
    275,776.92x = 58,962,041,777.89
  5. Step 5: Solve for x
    x = 58,962,041,777.89/275,776.92
  6. Step 6: Final answer
    x = 213,803.40

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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.