Home / 203,111.42-280,290.34-112,465.43

Finding the Fourth Proportional to 203,111.42, 280,290.34 and 112,465.43

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Solution

The fourth proportional to 203,111.42, 280,290.34 and 112,465.43 is: 155,200.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,111.42 : 280,290.34 = 112,465.43 : x
  2. Step 2: Convert to fraction form
    203,111.42/280,290.34 = 112,465.43/x
  3. Step 3: Cross multiply
    203,111.42x = 280,290.34 × 112,465.43
  4. Step 4: Simplify right side
    203,111.42x = 31,522,975,190.67
  5. Step 5: Solve for x
    x = 31,522,975,190.67/203,111.42
  6. Step 6: Final answer
    x = 155,200.41

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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.