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Finding the Fourth Proportional to 384,453.51, 576,696.29 and 131,907.71

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Solution

The fourth proportional to 384,453.51, 576,696.29 and 131,907.71 is: 197,867.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,453.51 : 576,696.29 = 131,907.71 : x
  2. Step 2: Convert to fraction form
    384,453.51/576,696.29 = 131,907.71/x
  3. Step 3: Cross multiply
    384,453.51x = 576,696.29 × 131,907.71
  4. Step 4: Simplify right side
    384,453.51x = 76,070,683,436.38
  5. Step 5: Solve for x
    x = 76,070,683,436.38/384,453.51
  6. Step 6: Final answer
    x = 197,867.05

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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.