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Finding the Fourth Proportional to 203,045.58, 280,080.32 and 130,424.04

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Solution

The fourth proportional to 203,045.58, 280,080.32 and 130,424.04 is: 179,906.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,045.58 : 280,080.32 = 130,424.04 : x
  2. Step 2: Convert to fraction form
    203,045.58/280,080.32 = 130,424.04/x
  3. Step 3: Cross multiply
    203,045.58x = 280,080.32 × 130,424.04
  4. Step 4: Simplify right side
    203,045.58x = 36,529,206,206.77
  5. Step 5: Solve for x
    x = 36,529,206,206.77/203,045.58
  6. Step 6: Final answer
    x = 179,906.43

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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.