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Finding the Fourth Proportional to 380,799, 525,502.62 and 211,044.06

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Solution

The fourth proportional to 380,799, 525,502.62 and 211,044.06 is: 291,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,799 : 525,502.62 = 211,044.06 : x
  2. Step 2: Convert to fraction form
    380,799/525,502.62 = 211,044.06/x
  3. Step 3: Cross multiply
    380,799x = 525,502.62 × 211,044.06
  4. Step 4: Simplify right side
    380,799x = 110,904,206,465.44
  5. Step 5: Solve for x
    x = 110,904,206,465.44/380,799
  6. Step 6: Final answer
    x = 291,240.80

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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.