Finding the Fourth Proportional to 291,382.11, 402,115.19 and 164,062.26
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Solution
The fourth proportional to 291,382.11, 402,115.19 and 164,062.26 is: 226,410.35
Step by Step Solution
- Step 1: Write the proportion equation
291,382.11 : 402,115.19 = 164,062.26 : x - Step 2: Convert to fraction form
291,382.11/402,115.19 = 164,062.26/x - Step 3: Cross multiply
291,382.11x = 402,115.19 × 164,062.26 - Step 4: Simplify right side
291,382.11x = 65,971,926,031.42 - Step 5: Solve for x
x = 65,971,926,031.42/291,382.11 - Step 6: Final answer
x = 226,410.35
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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.