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Finding the Fourth Proportional to 383,407.50, 529,141.72 and 230,495.19

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Solution

The fourth proportional to 383,407.50, 529,141.72 and 230,495.19 is: 318,107.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,407.50 : 529,141.72 = 230,495.19 : x
  2. Step 2: Convert to fraction form
    383,407.50/529,141.72 = 230,495.19/x
  3. Step 3: Cross multiply
    383,407.50x = 529,141.72 × 230,495.19
  4. Step 4: Simplify right side
    383,407.50x = 121,964,621,288.33
  5. Step 5: Solve for x
    x = 121,964,621,288.33/383,407.50
  6. Step 6: Final answer
    x = 318,107.03

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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.