Finding the Fourth Proportional to 287,971.26, 432,024.21 and 98,433.09
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Solution
The fourth proportional to 287,971.26, 432,024.21 and 98,433.09 is: 147,672.65
Step by Step Solution
- Step 1: Write the proportion equation
287,971.26 : 432,024.21 = 98,433.09 : x - Step 2: Convert to fraction form
287,971.26/432,024.21 = 98,433.09/x - Step 3: Cross multiply
287,971.26x = 432,024.21 × 98,433.09 - Step 4: Simplify right side
287,971.26x = 42,525,477,945.11 - Step 5: Solve for x
x = 42,525,477,945.11/287,971.26 - Step 6: Final answer
x = 147,672.65
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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.