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Finding the Fourth Proportional to 405,955.88, 608,992.14 and 125,495

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Solution

The fourth proportional to 405,955.88, 608,992.14 and 125,495 is: 188,260.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,955.88 : 608,992.14 = 125,495 : x
  2. Step 2: Convert to fraction form
    405,955.88/608,992.14 = 125,495/x
  3. Step 3: Cross multiply
    405,955.88x = 608,992.14 × 125,495
  4. Step 4: Simplify right side
    405,955.88x = 76,425,468,609.30
  5. Step 5: Solve for x
    x = 76,425,468,609.30/405,955.88
  6. Step 6: Final answer
    x = 188,260.53

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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.