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Finding the Fourth Proportional to 316,716.98, 437,064.03 and 171,521.59

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Solution

The fourth proportional to 316,716.98, 437,064.03 and 171,521.59 is: 236,696.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,716.98 : 437,064.03 = 171,521.59 : x
  2. Step 2: Convert to fraction form
    316,716.98/437,064.03 = 171,521.59/x
  3. Step 3: Cross multiply
    316,716.98x = 437,064.03 × 171,521.59
  4. Step 4: Simplify right side
    316,716.98x = 74,965,917,357.41
  5. Step 5: Solve for x
    x = 74,965,917,357.41/316,716.98
  6. Step 6: Final answer
    x = 236,696.87

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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.