Home / 309,629.84-426,893.60-200,541.47

Finding the Fourth Proportional to 309,629.84, 426,893.60 and 200,541.47

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Solution

The fourth proportional to 309,629.84, 426,893.60 and 200,541.47 is: 276,491.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,629.84 : 426,893.60 = 200,541.47 : x
  2. Step 2: Convert to fraction form
    309,629.84/426,893.60 = 200,541.47/x
  3. Step 3: Cross multiply
    309,629.84x = 426,893.60 × 200,541.47
  4. Step 4: Simplify right side
    309,629.84x = 85,609,869,074.88
  5. Step 5: Solve for x
    x = 85,609,869,074.88/309,629.84
  6. Step 6: Final answer
    x = 276,491.02

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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.