Home / 280,160.78-386,621.06-152,835.48

Finding the Fourth Proportional to 280,160.78, 386,621.06 and 152,835.48

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Solution

The fourth proportional to 280,160.78, 386,621.06 and 152,835.48 is: 210,912.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,160.78 : 386,621.06 = 152,835.48 : x
  2. Step 2: Convert to fraction form
    280,160.78/386,621.06 = 152,835.48/x
  3. Step 3: Cross multiply
    280,160.78x = 386,621.06 × 152,835.48
  4. Step 4: Simplify right side
    280,160.78x = 59,089,414,519.03
  5. Step 5: Solve for x
    x = 59,089,414,519.03/280,160.78
  6. Step 6: Final answer
    x = 210,912.52

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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.