Home / 203,200.26-280,418.61-112,557.62

Finding the Fourth Proportional to 203,200.26, 280,418.61 and 112,557.62

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Solution

The fourth proportional to 203,200.26, 280,418.61 and 112,557.62 is: 155,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,200.26 : 280,418.61 = 112,557.62 : x
  2. Step 2: Convert to fraction form
    203,200.26/280,418.61 = 112,557.62/x
  3. Step 3: Cross multiply
    203,200.26x = 280,418.61 × 112,557.62
  4. Step 4: Simplify right side
    203,200.26x = 31,563,249,943.22
  5. Step 5: Solve for x
    x = 31,563,249,943.22/203,200.26
  6. Step 6: Final answer
    x = 155,330.76

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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.