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Finding the Fourth Proportional to 539,156.77, 808,309 and 269,146.33

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Solution

The fourth proportional to 539,156.77, 808,309 and 269,146.33 is: 403,506.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,156.77 : 808,309 = 269,146.33 : x
  2. Step 2: Convert to fraction form
    539,156.77/808,309 = 269,146.33/x
  3. Step 3: Cross multiply
    539,156.77x = 808,309 × 269,146.33
  4. Step 4: Simplify right side
    539,156.77x = 217,553,400,855.97
  5. Step 5: Solve for x
    x = 217,553,400,855.97/539,156.77
  6. Step 6: Final answer
    x = 403,506.76

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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.