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Finding the Fourth Proportional to 405,379, 608,166.92 and 124,896.25

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Solution

The fourth proportional to 405,379, 608,166.92 and 124,896.25 is: 187,374.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,379 : 608,166.92 = 124,896.25 : x
  2. Step 2: Convert to fraction form
    405,379/608,166.92 = 124,896.25/x
  3. Step 3: Cross multiply
    405,379x = 608,166.92 × 124,896.25
  4. Step 4: Simplify right side
    405,379x = 75,957,767,682.05
  5. Step 5: Solve for x
    x = 75,957,767,682.05/405,379
  6. Step 6: Final answer
    x = 187,374.70

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1.5x scale

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.