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Finding the Fourth Proportional to 279,586.28, 383,658.97 and 254,242.28

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Solution

The fourth proportional to 279,586.28, 383,658.97 and 254,242.28 is: 348,880.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,586.28 : 383,658.97 = 254,242.28 : x
  2. Step 2: Convert to fraction form
    279,586.28/383,658.97 = 254,242.28/x
  3. Step 3: Cross multiply
    279,586.28x = 383,658.97 × 254,242.28
  4. Step 4: Simplify right side
    279,586.28x = 97,542,331,275.25
  5. Step 5: Solve for x
    x = 97,542,331,275.25/279,586.28
  6. Step 6: Final answer
    x = 348,880.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.