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Finding the Fourth Proportional to 419,525.48, 629,379.36 and 153,285.59

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Solution

The fourth proportional to 419,525.48, 629,379.36 and 153,285.59 is: 229,961.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,525.48 : 629,379.36 = 153,285.59 : x
  2. Step 2: Convert to fraction form
    419,525.48/629,379.36 = 153,285.59/x
  3. Step 3: Cross multiply
    419,525.48x = 629,379.36 × 153,285.59
  4. Step 4: Simplify right side
    419,525.48x = 96,474,783,384.53
  5. Step 5: Solve for x
    x = 96,474,783,384.53/419,525.48
  6. Step 6: Final answer
    x = 229,961.68

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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.