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Finding the Fourth Proportional to 383,880.08, 529,756.34 and 211,798.03

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Solution

The fourth proportional to 383,880.08, 529,756.34 and 211,798.03 is: 292,282.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,880.08 : 529,756.34 = 211,798.03 : x
  2. Step 2: Convert to fraction form
    383,880.08/529,756.34 = 211,798.03/x
  3. Step 3: Cross multiply
    383,880.08x = 529,756.34 × 211,798.03
  4. Step 4: Simplify right side
    383,880.08x = 112,201,349,192.01
  5. Step 5: Solve for x
    x = 112,201,349,192.01/383,880.08
  6. Step 6: Final answer
    x = 292,282.29

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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.