Home / 209,290.74-313,437.20-114,378.58

Finding the Fourth Proportional to 209,290.74, 313,437.20 and 114,378.58

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Solution

The fourth proportional to 209,290.74, 313,437.20 and 114,378.58 is: 171,295.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,290.74 : 313,437.20 = 114,378.58 : x
  2. Step 2: Convert to fraction form
    209,290.74/313,437.20 = 114,378.58/x
  3. Step 3: Cross multiply
    209,290.74x = 313,437.20 × 114,378.58
  4. Step 4: Simplify right side
    209,290.74x = 35,850,501,675.08
  5. Step 5: Solve for x
    x = 35,850,501,675.08/209,290.74
  6. Step 6: Final answer
    x = 171,295.22

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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.