Finding the Fourth Proportional to 291,246.17, 401,918.91 and 163,921.79
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Solution
The fourth proportional to 291,246.17, 401,918.91 and 163,921.79 is: 226,211.62
Step by Step Solution
- Step 1: Write the proportion equation
291,246.17 : 401,918.91 = 163,921.79 : x - Step 2: Convert to fraction form
291,246.17/401,918.91 = 163,921.79/x - Step 3: Cross multiply
291,246.17x = 401,918.91 × 163,921.79 - Step 4: Simplify right side
291,246.17x = 65,883,267,162.05 - Step 5: Solve for x
x = 65,883,267,162.05/291,246.17 - Step 6: Final answer
x = 226,211.62
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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.