Finding the Fourth Proportional to 291,012.36, 436,371.80 and 88,569.63
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Solution
The fourth proportional to 291,012.36, 436,371.80 and 88,569.63 is: 132,809.78
Step by Step Solution
- Step 1: Write the proportion equation
291,012.36 : 436,371.80 = 88,569.63 : x - Step 2: Convert to fraction form
291,012.36/436,371.80 = 88,569.63/x - Step 3: Cross multiply
291,012.36x = 436,371.80 × 88,569.63 - Step 4: Simplify right side
291,012.36x = 38,649,287,353.98 - Step 5: Solve for x
x = 38,649,287,353.98/291,012.36 - Step 6: Final answer
x = 132,809.78
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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.