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Finding the Fourth Proportional to 376,730.63, 519,888.47 and 206,975.69

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Solution

The fourth proportional to 376,730.63, 519,888.47 and 206,975.69 is: 285,626.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,730.63 : 519,888.47 = 206,975.69 : x
  2. Step 2: Convert to fraction form
    376,730.63/519,888.47 = 206,975.69/x
  3. Step 3: Cross multiply
    376,730.63x = 519,888.47 × 206,975.69
  4. Step 4: Simplify right side
    376,730.63x = 107,604,271,166.97
  5. Step 5: Solve for x
    x = 107,604,271,166.97/376,730.63
  6. Step 6: Final answer
    x = 285,626.56

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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.