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Finding the Fourth Proportional to 329,274.48, 493,900.62 and 139,612.80

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Solution

The fourth proportional to 329,274.48, 493,900.62 and 139,612.80 is: 209,414.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,274.48 : 493,900.62 = 139,612.80 : x
  2. Step 2: Convert to fraction form
    329,274.48/493,900.62 = 139,612.80/x
  3. Step 3: Cross multiply
    329,274.48x = 493,900.62 × 139,612.80
  4. Step 4: Simplify right side
    329,274.48x = 68,954,848,479.94
  5. Step 5: Solve for x
    x = 68,954,848,479.94/329,274.48
  6. Step 6: Final answer
    x = 209,414.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.