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Finding the Fourth Proportional to 379,388.63, 523,665.41 and 250,421.24

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Solution

The fourth proportional to 379,388.63, 523,665.41 and 250,421.24 is: 345,653.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,388.63 : 523,665.41 = 250,421.24 : x
  2. Step 2: Convert to fraction form
    379,388.63/523,665.41 = 250,421.24/x
  3. Step 3: Cross multiply
    379,388.63x = 523,665.41 × 250,421.24
  4. Step 4: Simplify right side
    379,388.63x = 131,136,941,374.37
  5. Step 5: Solve for x
    x = 131,136,941,374.37/379,388.63
  6. Step 6: Final answer
    x = 345,653.32

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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.