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Finding the Fourth Proportional to 208,774, 313,213.02 and 61,030

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Solution

The fourth proportional to 208,774, 313,213.02 and 61,030 is: 91,560.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,774 : 313,213.02 = 61,030 : x
  2. Step 2: Convert to fraction form
    208,774/313,213.02 = 61,030/x
  3. Step 3: Cross multiply
    208,774x = 313,213.02 × 61,030
  4. Step 4: Simplify right side
    208,774x = 19,115,390,610.60
  5. Step 5: Solve for x
    x = 19,115,390,610.60/208,774
  6. Step 6: Final answer
    x = 91,560.21

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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.