Home / 271,974.78-407,962.09-84,986.28

Finding the Fourth Proportional to 271,974.78, 407,962.09 and 84,986.28

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Solution

The fourth proportional to 271,974.78, 407,962.09 and 84,986.28 is: 127,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,974.78 : 407,962.09 = 84,986.28 : x
  2. Step 2: Convert to fraction form
    271,974.78/407,962.09 = 84,986.28/x
  3. Step 3: Cross multiply
    271,974.78x = 407,962.09 × 84,986.28
  4. Step 4: Simplify right side
    271,974.78x = 34,671,180,410.13
  5. Step 5: Solve for x
    x = 34,671,180,410.13/271,974.78
  6. Step 6: Final answer
    x = 127,479.40

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1.5x scale

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.