Finding the Fourth Proportional to 438,109.70, 604,591.44 and 236,905.70
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Solution
The fourth proportional to 438,109.70, 604,591.44 and 236,905.70 is: 326,929.90
Step by Step Solution
- Step 1: Write the proportion equation
438,109.70 : 604,591.44 = 236,905.70 : x - Step 2: Convert to fraction form
438,109.70/604,591.44 = 236,905.70/x - Step 3: Cross multiply
438,109.70x = 604,591.44 × 236,905.70 - Step 4: Simplify right side
438,109.70x = 143,231,158,307.21 - Step 5: Solve for x
x = 143,231,158,307.21/438,109.70 - Step 6: Final answer
x = 326,929.90
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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.