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Finding the Fourth Proportional to 389,242, 583,863 and 93,754

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Solution

The fourth proportional to 389,242, 583,863 and 93,754 is: 140,631

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,242 : 583,863 = 93,754 : x
  2. Step 2: Convert to fraction form
    389,242/583,863 = 93,754/x
  3. Step 3: Cross multiply
    389,242x = 583,863 × 93,754
  4. Step 4: Simplify right side
    389,242x = 54,739,491,702
  5. Step 5: Solve for x
    x = 54,739,491,702/389,242
  6. Step 6: Final answer
    x = 140,631

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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.