Finding the Fourth Proportional to 658,368.70, 987,553.05 and 237,658.30
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Solution
The fourth proportional to 658,368.70, 987,553.05 and 237,658.30 is: 356,487.45
Step by Step Solution
- Step 1: Write the proportion equation
658,368.70 : 987,553.05 = 237,658.30 : x - Step 2: Convert to fraction form
658,368.70/987,553.05 = 237,658.30/x - Step 3: Cross multiply
658,368.70x = 987,553.05 × 237,658.30 - Step 4: Simplify right side
658,368.70x = 234,700,179,022.82 - Step 5: Solve for x
x = 234,700,179,022.82/658,368.70 - Step 6: Final answer
x = 356,487.45
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Double scale
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Similar ratio
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1.5x scale
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.