Finding the Fourth Proportional to 665,425.40, 998,138.10 and 266,127.80
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Solution
The fourth proportional to 665,425.40, 998,138.10 and 266,127.80 is: 399,191.70
Step by Step Solution
- Step 1: Write the proportion equation
665,425.40 : 998,138.10 = 266,127.80 : x - Step 2: Convert to fraction form
665,425.40/998,138.10 = 266,127.80/x - Step 3: Cross multiply
665,425.40x = 998,138.10 × 266,127.80 - Step 4: Simplify right side
665,425.40x = 265,632,296,649.18 - Step 5: Solve for x
x = 265,632,296,649.18/665,425.40 - Step 6: Final answer
x = 399,191.70
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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.