Home / 311,931.08-467,959.80-101,512.52

Finding the Fourth Proportional to 311,931.08, 467,959.80 and 101,512.52

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Solution

The fourth proportional to 311,931.08, 467,959.80 and 101,512.52 is: 152,289.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,931.08 : 467,959.80 = 101,512.52 : x
  2. Step 2: Convert to fraction form
    311,931.08/467,959.80 = 101,512.52/x
  3. Step 3: Cross multiply
    311,931.08x = 467,959.80 × 101,512.52
  4. Step 4: Simplify right side
    311,931.08x = 47,503,778,556.70
  5. Step 5: Solve for x
    x = 47,503,778,556.70/311,931.08
  6. Step 6: Final answer
    x = 152,289.34

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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.