Home / 203,288.20-280,533.52-112,643.37

Finding the Fourth Proportional to 203,288.20, 280,533.52 and 112,643.37

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Solution

The fourth proportional to 203,288.20, 280,533.52 and 112,643.37 is: 155,445.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,288.20 : 280,533.52 = 112,643.37 : x
  2. Step 2: Convert to fraction form
    203,288.20/280,533.52 = 112,643.37/x
  3. Step 3: Cross multiply
    203,288.20x = 280,533.52 × 112,643.37
  4. Step 4: Simplify right side
    203,288.20x = 31,600,241,090.76
  5. Step 5: Solve for x
    x = 31,600,241,090.76/203,288.20
  6. Step 6: Final answer
    x = 155,445.53

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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.