Home / 203,238.90-280,453.20-112,598.70

Finding the Fourth Proportional to 203,238.90, 280,453.20 and 112,598.70

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Solution

The fourth proportional to 203,238.90, 280,453.20 and 112,598.70 is: 155,377.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,238.90 : 280,453.20 = 112,598.70 : x
  2. Step 2: Convert to fraction form
    203,238.90/280,453.20 = 112,598.70/x
  3. Step 3: Cross multiply
    203,238.90x = 280,453.20 × 112,598.70
  4. Step 4: Simplify right side
    203,238.90x = 31,578,665,730.84
  5. Step 5: Solve for x
    x = 31,578,665,730.84/203,238.90
  6. Step 6: Final answer
    x = 155,377.07

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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.