Home / 203,240.88-280,458.36-112,588.38

Finding the Fourth Proportional to 203,240.88, 280,458.36 and 112,588.38

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Solution

The fourth proportional to 203,240.88, 280,458.36 and 112,588.38 is: 155,364.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,240.88 : 280,458.36 = 112,588.38 : x
  2. Step 2: Convert to fraction form
    203,240.88/280,458.36 = 112,588.38/x
  3. Step 3: Cross multiply
    203,240.88x = 280,458.36 × 112,588.38
  4. Step 4: Simplify right side
    203,240.88x = 31,576,352,409.86
  5. Step 5: Solve for x
    x = 31,576,352,409.86/203,240.88
  6. Step 6: Final answer
    x = 155,364.18

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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.