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Finding the Fourth Proportional to 225,915.04, 311,800.16 and 125,345.44

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Solution

The fourth proportional to 225,915.04, 311,800.16 and 125,345.44 is: 172,997.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,915.04 : 311,800.16 = 125,345.44 : x
  2. Step 2: Convert to fraction form
    225,915.04/311,800.16 = 125,345.44/x
  3. Step 3: Cross multiply
    225,915.04x = 311,800.16 × 125,345.44
  4. Step 4: Simplify right side
    225,915.04x = 39,082,728,247.27
  5. Step 5: Solve for x
    x = 39,082,728,247.27/225,915.04
  6. Step 6: Final answer
    x = 172,997.46

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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.