Finding the Fourth Proportional to 261,622,163.80, 392,433,245.70 and 237,388,454.20
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Solution
The fourth proportional to 261,622,163.80, 392,433,245.70 and 237,388,454.20 is: 356,082,681.30
Step by Step Solution
- Step 1: Write the proportion equation
261,622,163.80 : 392,433,245.70 = 237,388,454.20 : x - Step 2: Convert to fraction form
261,622,163.80/392,433,245.70 = 237,388,454.20/x - Step 3: Cross multiply
261,622,163.80x = 392,433,245.70 × 237,388,454.20 - Step 4: Simplify right side
261,622,163.80x = 93,159,121,573,411,792 - Step 5: Solve for x
x = 93,159,121,573,411,792/261,622,163.80 - Step 6: Final answer
x = 356,082,681.30
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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.