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Finding the Fourth Proportional to 539,067.90, 808,365 and 201,872.07

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Solution

The fourth proportional to 539,067.90, 808,365 and 201,872.07 is: 302,719.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,067.90 : 808,365 = 201,872.07 : x
  2. Step 2: Convert to fraction form
    539,067.90/808,365 = 201,872.07/x
  3. Step 3: Cross multiply
    539,067.90x = 808,365 × 201,872.07
  4. Step 4: Simplify right side
    539,067.90x = 163,186,315,865.55
  5. Step 5: Solve for x
    x = 163,186,315,865.55/539,067.90
  6. Step 6: Final answer
    x = 302,719.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.