Home / 280,972.99-421,240.38-190,777.87

Finding the Fourth Proportional to 280,972.99, 421,240.38 and 190,777.87

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Solution

The fourth proportional to 280,972.99, 421,240.38 and 190,777.87 is: 286,018.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,972.99 : 421,240.38 = 190,777.87 : x
  2. Step 2: Convert to fraction form
    280,972.99/421,240.38 = 190,777.87/x
  3. Step 3: Cross multiply
    280,972.99x = 421,240.38 × 190,777.87
  4. Step 4: Simplify right side
    280,972.99x = 80,363,342,454.39
  5. Step 5: Solve for x
    x = 80,363,342,454.39/280,972.99
  6. Step 6: Final answer
    x = 286,018.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.