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Finding the Fourth Proportional to 203,199.74, 280,403.30 and 112,550.42

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Solution

The fourth proportional to 203,199.74, 280,403.30 and 112,550.42 is: 155,312.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,199.74 : 280,403.30 = 112,550.42 : x
  2. Step 2: Convert to fraction form
    203,199.74/280,403.30 = 112,550.42/x
  3. Step 3: Cross multiply
    203,199.74x = 280,403.30 × 112,550.42
  4. Step 4: Simplify right side
    203,199.74x = 31,559,507,782.37
  5. Step 5: Solve for x
    x = 31,559,507,782.37/203,199.74
  6. Step 6: Final answer
    x = 155,312.74

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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.