Finding the Fourth Proportional to 235,430.10, 353,145.15 and 208,991.70
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Solution
The fourth proportional to 235,430.10, 353,145.15 and 208,991.70 is: 313,487.55
Step by Step Solution
- Step 1: Write the proportion equation
235,430.10 : 353,145.15 = 208,991.70 : x - Step 2: Convert to fraction form
235,430.10/353,145.15 = 208,991.70/x - Step 3: Cross multiply
235,430.10x = 353,145.15 × 208,991.70 - Step 4: Simplify right side
235,430.10x = 73,804,405,245.26 - Step 5: Solve for x
x = 73,804,405,245.26/235,430.10 - Step 6: Final answer
x = 313,487.55
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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.