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Finding the Fourth Proportional to 208,511.90, 312,525.90 and 95,955.82

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Solution

The fourth proportional to 208,511.90, 312,525.90 and 95,955.82 is: 143,822.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,511.90 : 312,525.90 = 95,955.82 : x
  2. Step 2: Convert to fraction form
    208,511.90/312,525.90 = 95,955.82/x
  3. Step 3: Cross multiply
    208,511.90x = 312,525.90 × 95,955.82
  4. Step 4: Simplify right side
    208,511.90x = 29,988,679,005.74
  5. Step 5: Solve for x
    x = 29,988,679,005.74/208,511.90
  6. Step 6: Final answer
    x = 143,822.39

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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.