Home / 203,080.28-280,241.64-112,429.88

Finding the Fourth Proportional to 203,080.28, 280,241.64 and 112,429.88

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Solution

The fourth proportional to 203,080.28, 280,241.64 and 112,429.88 is: 155,148.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,080.28 : 280,241.64 = 112,429.88 : x
  2. Step 2: Convert to fraction form
    203,080.28/280,241.64 = 112,429.88/x
  3. Step 3: Cross multiply
    203,080.28x = 280,241.64 × 112,429.88
  4. Step 4: Simplify right side
    203,080.28x = 31,507,533,956.20
  5. Step 5: Solve for x
    x = 31,507,533,956.20/203,080.28
  6. Step 6: Final answer
    x = 155,148.17

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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.