Home / 392,852.03-542,121.46-240,145.97

Finding the Fourth Proportional to 392,852.03, 542,121.46 and 240,145.97

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Solution

The fourth proportional to 392,852.03, 542,121.46 and 240,145.97 is: 331,392.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,852.03 : 542,121.46 = 240,145.97 : x
  2. Step 2: Convert to fraction form
    392,852.03/542,121.46 = 240,145.97/x
  3. Step 3: Cross multiply
    392,852.03x = 542,121.46 × 240,145.97
  4. Step 4: Simplify right side
    392,852.03x = 130,188,280,558.54
  5. Step 5: Solve for x
    x = 130,188,280,558.54/392,852.03
  6. Step 6: Final answer
    x = 331,392.67

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1.5x scale

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.