Home / 330,144.48-454,579.23-257,839.44

Finding the Fourth Proportional to 330,144.48, 454,579.23 and 257,839.44

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Solution

The fourth proportional to 330,144.48, 454,579.23 and 257,839.44 is: 355,021.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,144.48 : 454,579.23 = 257,839.44 : x
  2. Step 2: Convert to fraction form
    330,144.48/454,579.23 = 257,839.44/x
  3. Step 3: Cross multiply
    330,144.48x = 454,579.23 × 257,839.44
  4. Step 4: Simplify right side
    330,144.48x = 117,208,454,098.83
  5. Step 5: Solve for x
    x = 117,208,454,098.83/330,144.48
  6. Step 6: Final answer
    x = 355,021.70

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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.