Finding the Fourth Proportional to 442,802.70, 664,204.05 and 143,305.20
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Solution
The fourth proportional to 442,802.70, 664,204.05 and 143,305.20 is: 214,957.80
Step by Step Solution
- Step 1: Write the proportion equation
442,802.70 : 664,204.05 = 143,305.20 : x - Step 2: Convert to fraction form
442,802.70/664,204.05 = 143,305.20/x - Step 3: Cross multiply
442,802.70x = 664,204.05 × 143,305.20 - Step 4: Simplify right side
442,802.70x = 95,183,894,226.06 - Step 5: Solve for x
x = 95,183,894,226.06/442,802.70 - Step 6: Final answer
x = 214,957.80
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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.