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Finding the Fourth Proportional to 273,492, 377,431.92 and 154,260

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Solution

The fourth proportional to 273,492, 377,431.92 and 154,260 is: 212,886.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,492 : 377,431.92 = 154,260 : x
  2. Step 2: Convert to fraction form
    273,492/377,431.92 = 154,260/x
  3. Step 3: Cross multiply
    273,492x = 377,431.92 × 154,260
  4. Step 4: Simplify right side
    273,492x = 58,222,647,979.20
  5. Step 5: Solve for x
    x = 58,222,647,979.20/273,492
  6. Step 6: Final answer
    x = 212,886.11

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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.