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Finding the Fourth Proportional to 274,300.62, 378,552.86 and 153,462.79

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Solution

The fourth proportional to 274,300.62, 378,552.86 and 153,462.79 is: 211,788.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,300.62 : 378,552.86 = 153,462.79 : x
  2. Step 2: Convert to fraction form
    274,300.62/378,552.86 = 153,462.79/x
  3. Step 3: Cross multiply
    274,300.62x = 378,552.86 × 153,462.79
  4. Step 4: Simplify right side
    274,300.62x = 58,093,778,058.08
  5. Step 5: Solve for x
    x = 58,093,778,058.08/274,300.62
  6. Step 6: Final answer
    x = 211,788.72

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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.