Finding the Fourth Proportional to 212,312.48, 292,957.86 and 121,651.00
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Solution
The fourth proportional to 212,312.48, 292,957.86 and 121,651.00 is: 167,859.27
Step by Step Solution
- Step 1: Write the proportion equation
212,312.48 : 292,957.86 = 121,651.00 : x - Step 2: Convert to fraction form
212,312.48/292,957.86 = 121,651.00/x - Step 3: Cross multiply
212,312.48x = 292,957.86 × 121,651.00 - Step 4: Simplify right side
212,312.48x = 35,638,616,350.66 - Step 5: Solve for x
x = 35,638,616,350.66/212,312.48 - Step 6: Final answer
x = 167,859.27
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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.