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Finding the Fourth Proportional to 242,912.70, 364,369.05 and 217,324.80

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Solution

The fourth proportional to 242,912.70, 364,369.05 and 217,324.80 is: 325,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,912.70 : 364,369.05 = 217,324.80 : x
  2. Step 2: Convert to fraction form
    242,912.70/364,369.05 = 217,324.80/x
  3. Step 3: Cross multiply
    242,912.70x = 364,369.05 × 217,324.80
  4. Step 4: Simplify right side
    242,912.70x = 79,186,430,917.44
  5. Step 5: Solve for x
    x = 79,186,430,917.44/242,912.70
  6. Step 6: Final answer
    x = 325,987.20

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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.