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Finding the Fourth Proportional to 283,049.44, 390,608.22 and 155,722.30

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Solution

The fourth proportional to 283,049.44, 390,608.22 and 155,722.30 is: 214,896.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,049.44 : 390,608.22 = 155,722.30 : x
  2. Step 2: Convert to fraction form
    283,049.44/390,608.22 = 155,722.30/x
  3. Step 3: Cross multiply
    283,049.44x = 390,608.22 × 155,722.30
  4. Step 4: Simplify right side
    283,049.44x = 60,826,410,024.74
  5. Step 5: Solve for x
    x = 60,826,410,024.74/283,049.44
  6. Step 6: Final answer
    x = 214,896.77

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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.