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Finding the Fourth Proportional to 203,340.27, 280,601.92 and 112,697.77

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Solution

The fourth proportional to 203,340.27, 280,601.92 and 112,697.77 is: 155,518.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,340.27 : 280,601.92 = 112,697.77 : x
  2. Step 2: Convert to fraction form
    203,340.27/280,601.92 = 112,697.77/x
  3. Step 3: Cross multiply
    203,340.27x = 280,601.92 × 112,697.77
  4. Step 4: Simplify right side
    203,340.27x = 31,623,210,641.72
  5. Step 5: Solve for x
    x = 31,623,210,641.72/203,340.27
  6. Step 6: Final answer
    x = 155,518.68

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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.