Home / 343,390.23-515,015.20-130,084.60

Finding the Fourth Proportional to 343,390.23, 515,015.20 and 130,084.60

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Solution

The fourth proportional to 343,390.23, 515,015.20 and 130,084.60 is: 195,100.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,390.23 : 515,015.20 = 130,084.60 : x
  2. Step 2: Convert to fraction form
    343,390.23/515,015.20 = 130,084.60/x
  3. Step 3: Cross multiply
    343,390.23x = 515,015.20 × 130,084.60
  4. Step 4: Simplify right side
    343,390.23x = 66,995,546,285.92
  5. Step 5: Solve for x
    x = 66,995,546,285.92/343,390.23
  6. Step 6: Final answer
    x = 195,100.33

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1.5x scale

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.