Finding the Fourth Proportional to 442,804.70, 664,207.05 and 143,307.20
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Solution
The fourth proportional to 442,804.70, 664,207.05 and 143,307.20 is: 214,960.80
Step by Step Solution
- Step 1: Write the proportion equation
442,804.70 : 664,207.05 = 143,307.20 : x - Step 2: Convert to fraction form
442,804.70/664,207.05 = 143,307.20/x - Step 3: Cross multiply
442,804.70x = 664,207.05 × 143,307.20 - Step 4: Simplify right side
442,804.70x = 95,185,652,555.76 - Step 5: Solve for x
x = 95,185,652,555.76/442,804.70 - Step 6: Final answer
x = 214,960.80
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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.