Home / 317,872.20-438,556.64-180,032.34

Finding the Fourth Proportional to 317,872.20, 438,556.64 and 180,032.34

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Solution

The fourth proportional to 317,872.20, 438,556.64 and 180,032.34 is: 248,384.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,872.20 : 438,556.64 = 180,032.34 : x
  2. Step 2: Convert to fraction form
    317,872.20/438,556.64 = 180,032.34/x
  3. Step 3: Cross multiply
    317,872.20x = 438,556.64 × 180,032.34
  4. Step 4: Simplify right side
    317,872.20x = 78,954,378,121.74
  5. Step 5: Solve for x
    x = 78,954,378,121.74/317,872.20
  6. Step 6: Final answer
    x = 248,384.03

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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.