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Finding the Fourth Proportional to 275,493.63, 380,151.99 and 154,648.23

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Solution

The fourth proportional to 275,493.63, 380,151.99 and 154,648.23 is: 213,398.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,493.63 : 380,151.99 = 154,648.23 : x
  2. Step 2: Convert to fraction form
    275,493.63/380,151.99 = 154,648.23/x
  3. Step 3: Cross multiply
    275,493.63x = 380,151.99 × 154,648.23
  4. Step 4: Simplify right side
    275,493.63x = 58,789,832,384.48
  5. Step 5: Solve for x
    x = 58,789,832,384.48/275,493.63
  6. Step 6: Final answer
    x = 213,398.16

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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.