Home / 203,255.45-280,624.15-130,690.94

Finding the Fourth Proportional to 203,255.45, 280,624.15 and 130,690.94

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Solution

The fourth proportional to 203,255.45, 280,624.15 and 130,690.94 is: 180,438.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,255.45 : 280,624.15 = 130,690.94 : x
  2. Step 2: Convert to fraction form
    203,255.45/280,624.15 = 130,690.94/x
  3. Step 3: Cross multiply
    203,255.45x = 280,624.15 × 130,690.94
  4. Step 4: Simplify right side
    203,255.45x = 36,675,032,710.44
  5. Step 5: Solve for x
    x = 36,675,032,710.44/203,255.45
  6. Step 6: Final answer
    x = 180,438.13

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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.