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Finding the Fourth Proportional to 376,731, 519,888.99 and 206,976.06

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Solution

The fourth proportional to 376,731, 519,888.99 and 206,976.06 is: 285,627.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,731 : 519,888.99 = 206,976.06 : x
  2. Step 2: Convert to fraction form
    376,731/519,888.99 = 206,976.06/x
  3. Step 3: Cross multiply
    376,731x = 519,888.99 × 206,976.06
  4. Step 4: Simplify right side
    376,731x = 107,604,574,787.58
  5. Step 5: Solve for x
    x = 107,604,574,787.58/376,731
  6. Step 6: Final answer
    x = 285,627.08

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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.