Finding the Fourth Proportional to 405,072.56, 559,000.14 and 235,317.62
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Solution
The fourth proportional to 405,072.56, 559,000.14 and 235,317.62 is: 324,738.32
Step by Step Solution
- Step 1: Write the proportion equation
405,072.56 : 559,000.14 = 235,317.62 : x - Step 2: Convert to fraction form
405,072.56/559,000.14 = 235,317.62/x - Step 3: Cross multiply
405,072.56x = 559,000.14 × 235,317.62 - Step 4: Simplify right side
405,072.56x = 131,542,583,039.53 - Step 5: Solve for x
x = 131,542,583,039.53/405,072.56 - Step 6: Final answer
x = 324,738.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.