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Finding the Fourth Proportional to 383,464.10, 574,540.05 and 243,058.70

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Solution

The fourth proportional to 383,464.10, 574,540.05 and 243,058.70 is: 364,172.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,464.10 : 574,540.05 = 243,058.70 : x
  2. Step 2: Convert to fraction form
    383,464.10/574,540.05 = 243,058.70/x
  3. Step 3: Cross multiply
    383,464.10x = 574,540.05 × 243,058.70
  4. Step 4: Simplify right side
    383,464.10x = 139,646,957,650.94
  5. Step 5: Solve for x
    x = 139,646,957,650.94/383,464.10
  6. Step 6: Final answer
    x = 364,172.18

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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.