Finding the Fourth Proportional to 453,419.40, 680,129.10 and 154,237.80
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Solution
The fourth proportional to 453,419.40, 680,129.10 and 154,237.80 is: 231,356.70
Step by Step Solution
- Step 1: Write the proportion equation
453,419.40 : 680,129.10 = 154,237.80 : x - Step 2: Convert to fraction form
453,419.40/680,129.10 = 154,237.80/x - Step 3: Cross multiply
453,419.40x = 680,129.10 × 154,237.80 - Step 4: Simplify right side
453,419.40x = 104,901,616,099.98 - Step 5: Solve for x
x = 104,901,616,099.98/453,419.40 - Step 6: Final answer
x = 231,356.70
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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.