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Finding the Fourth Proportional to 203,263.77, 280,500.36 and 112,617.92

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Solution

The fourth proportional to 203,263.77, 280,500.36 and 112,617.92 is: 155,410.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,263.77 : 280,500.36 = 112,617.92 : x
  2. Step 2: Convert to fraction form
    203,263.77/280,500.36 = 112,617.92/x
  3. Step 3: Cross multiply
    203,263.77x = 280,500.36 × 112,617.92
  4. Step 4: Simplify right side
    203,263.77x = 31,589,365,699.95
  5. Step 5: Solve for x
    x = 31,589,365,699.95/203,263.77
  6. Step 6: Final answer
    x = 155,410.70

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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.