Finding the Fourth Proportional to 217,349.04, 299,941.68 and 121,855.92
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Solution
The fourth proportional to 217,349.04, 299,941.68 and 121,855.92 is: 168,161.17
Step by Step Solution
- Step 1: Write the proportion equation
217,349.04 : 299,941.68 = 121,855.92 : x - Step 2: Convert to fraction form
217,349.04/299,941.68 = 121,855.92/x - Step 3: Cross multiply
217,349.04x = 299,941.68 × 121,855.92 - Step 4: Simplify right side
217,349.04x = 36,549,669,362.75 - Step 5: Solve for x
x = 36,549,669,362.75/217,349.04 - Step 6: Final answer
x = 168,161.17
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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.