Finding the Fourth Proportional to 291,855.84, 402,743.70 and 169,338.75
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Solution
The fourth proportional to 291,855.84, 402,743.70 and 169,338.75 is: 233,677.40
Step by Step Solution
- Step 1: Write the proportion equation
291,855.84 : 402,743.70 = 169,338.75 : x - Step 2: Convert to fraction form
291,855.84/402,743.70 = 169,338.75/x - Step 3: Cross multiply
291,855.84x = 402,743.70 × 169,338.75 - Step 4: Simplify right side
291,855.84x = 68,200,114,728.38 - Step 5: Solve for x
x = 68,200,114,728.38/291,855.84 - Step 6: Final answer
x = 233,677.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.