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Finding the Fourth Proportional to 383,658.36, 529,782.84 and 240,664.20

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Solution

The fourth proportional to 383,658.36, 529,782.84 and 240,664.20 is: 332,326.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,658.36 : 529,782.84 = 240,664.20 : x
  2. Step 2: Convert to fraction form
    383,658.36/529,782.84 = 240,664.20/x
  3. Step 3: Cross multiply
    383,658.36x = 529,782.84 × 240,664.20
  4. Step 4: Simplify right side
    383,658.36x = 127,499,763,362.33
  5. Step 5: Solve for x
    x = 127,499,763,362.33/383,658.36
  6. Step 6: Final answer
    x = 332,326.30

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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.