Home / 405,263.82-607,885.26-131,708.49

Finding the Fourth Proportional to 405,263.82, 607,885.26 and 131,708.49

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Solution

The fourth proportional to 405,263.82, 607,885.26 and 131,708.49 is: 197,559.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,263.82 : 607,885.26 = 131,708.49 : x
  2. Step 2: Convert to fraction form
    405,263.82/607,885.26 = 131,708.49/x
  3. Step 3: Cross multiply
    405,263.82x = 607,885.26 × 131,708.49
  4. Step 4: Simplify right side
    405,263.82x = 80,063,650,914.64
  5. Step 5: Solve for x
    x = 80,063,650,914.64/405,263.82
  6. Step 6: Final answer
    x = 197,559.34

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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.