Home / 203,319.92-280,568.75-112,670.60

Finding the Fourth Proportional to 203,319.92, 280,568.75 and 112,670.60

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Solution

The fourth proportional to 203,319.92, 280,568.75 and 112,670.60 is: 155,478.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,319.92 : 280,568.75 = 112,670.60 : x
  2. Step 2: Convert to fraction form
    203,319.92/280,568.75 = 112,670.60/x
  3. Step 3: Cross multiply
    203,319.92x = 280,568.75 × 112,670.60
  4. Step 4: Simplify right side
    203,319.92x = 31,611,847,437.55
  5. Step 5: Solve for x
    x = 31,611,847,437.55/203,319.92
  6. Step 6: Final answer
    x = 155,478.36

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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.