Finding the Fourth Proportional to 400,122.29, 552,160.99 and 218,833.64
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Solution
The fourth proportional to 400,122.29, 552,160.99 and 218,833.64 is: 301,986.17
Step by Step Solution
- Step 1: Write the proportion equation
400,122.29 : 552,160.99 = 218,833.64 : x - Step 2: Convert to fraction form
400,122.29/552,160.99 = 218,833.64/x - Step 3: Cross multiply
400,122.29x = 552,160.99 × 218,833.64 - Step 4: Simplify right side
400,122.29x = 120,831,399,307.70 - Step 5: Solve for x
x = 120,831,399,307.70/400,122.29 - Step 6: Final answer
x = 301,986.17
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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.