Home / 208,982.28-288,401.27-122,947.32

Finding the Fourth Proportional to 208,982.28, 288,401.27 and 122,947.32

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Solution

The fourth proportional to 208,982.28, 288,401.27 and 122,947.32 is: 169,670.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,982.28 : 288,401.27 = 122,947.32 : x
  2. Step 2: Convert to fraction form
    208,982.28/288,401.27 = 122,947.32/x
  3. Step 3: Cross multiply
    208,982.28x = 288,401.27 × 122,947.32
  4. Step 4: Simplify right side
    208,982.28x = 35,458,162,616.36
  5. Step 5: Solve for x
    x = 35,458,162,616.36/208,982.28
  6. Step 6: Final answer
    x = 169,670.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.