Finding the Fourth Proportional to 217,239.66, 299,808.49 and 120,473.82
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Solution
The fourth proportional to 217,239.66, 299,808.49 and 120,473.82 is: 166,263.72
Step by Step Solution
- Step 1: Write the proportion equation
217,239.66 : 299,808.49 = 120,473.82 : x - Step 2: Convert to fraction form
217,239.66/299,808.49 = 120,473.82/x - Step 3: Cross multiply
217,239.66x = 299,808.49 × 120,473.82 - Step 4: Simplify right side
217,239.66x = 36,119,074,881.83 - Step 5: Solve for x
x = 36,119,074,881.83/217,239.66 - Step 6: Final answer
x = 166,263.72
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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.