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Finding the Fourth Proportional to 328,908.09, 493,512.81 and 178,923.63

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Solution

The fourth proportional to 328,908.09, 493,512.81 and 178,923.63 is: 268,467.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,908.09 : 493,512.81 = 178,923.63 : x
  2. Step 2: Convert to fraction form
    328,908.09/493,512.81 = 178,923.63/x
  3. Step 3: Cross multiply
    328,908.09x = 493,512.81 × 178,923.63
  4. Step 4: Simplify right side
    328,908.09x = 88,301,103,416.70
  5. Step 5: Solve for x
    x = 88,301,103,416.70/328,908.09
  6. Step 6: Final answer
    x = 268,467.41

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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.