Finding the Fourth Proportional to 326,988.18, 490,281.54 and 127,075.14
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Solution
The fourth proportional to 326,988.18, 490,281.54 and 127,075.14 is: 190,534.70
Step by Step Solution
- Step 1: Write the proportion equation
326,988.18 : 490,281.54 = 127,075.14 : x - Step 2: Convert to fraction form
326,988.18/490,281.54 = 127,075.14/x - Step 3: Cross multiply
326,988.18x = 490,281.54 × 127,075.14 - Step 4: Simplify right side
326,988.18x = 62,302,595,334.92 - Step 5: Solve for x
x = 62,302,595,334.92/326,988.18 - Step 6: Final answer
x = 190,534.70
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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.