Finding the Fourth Proportional to 286,279.70, 400,266.70 and 286,279.70
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Solution
The fourth proportional to 286,279.70, 400,266.70 and 286,279.70 is: 400,266.70
Step by Step Solution
- Step 1: Write the proportion equation
286,279.70 : 400,266.70 = 286,279.70 : x - Step 2: Convert to fraction form
286,279.70/400,266.70 = 286,279.70/x - Step 3: Cross multiply
286,279.70x = 400,266.70 × 286,279.70 - Step 4: Simplify right side
286,279.70x = 114,588,230,795.99 - Step 5: Solve for x
x = 114,588,230,795.99/286,279.70 - Step 6: Final answer
x = 400,266.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.