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Finding the Fourth Proportional to 538,809.80, 808,185.40 and 164,832.80

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Solution

The fourth proportional to 538,809.80, 808,185.40 and 164,832.80 is: 247,240.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,809.80 : 808,185.40 = 164,832.80 : x
  2. Step 2: Convert to fraction form
    538,809.80/808,185.40 = 164,832.80/x
  3. Step 3: Cross multiply
    538,809.80x = 808,185.40 × 164,832.80
  4. Step 4: Simplify right side
    538,809.80x = 133,215,462,401.12
  5. Step 5: Solve for x
    x = 133,215,462,401.12/538,809.80
  6. Step 6: Final answer
    x = 247,240.24

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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.