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Finding the Fourth Proportional to 262,289.79, 393,137.01 and 230,638.64

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Solution

The fourth proportional to 262,289.79, 393,137.01 and 230,638.64 is: 345,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,289.79 : 393,137.01 = 230,638.64 : x
  2. Step 2: Convert to fraction form
    262,289.79/393,137.01 = 230,638.64/x
  3. Step 3: Cross multiply
    262,289.79x = 393,137.01 × 230,638.64
  4. Step 4: Simplify right side
    262,289.79x = 90,672,583,354.38
  5. Step 5: Solve for x
    x = 90,672,583,354.38/262,289.79
  6. Step 6: Final answer
    x = 345,696.20

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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.