Finding the Fourth Proportional to 211,781.88, 292,285.33 and 121,125.26
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Solution
The fourth proportional to 211,781.88, 292,285.33 and 121,125.26 is: 167,167.92
Step by Step Solution
- Step 1: Write the proportion equation
211,781.88 : 292,285.33 = 121,125.26 : x - Step 2: Convert to fraction form
211,781.88/292,285.33 = 121,125.26/x - Step 3: Cross multiply
211,781.88x = 292,285.33 × 121,125.26 - Step 4: Simplify right side
211,781.88x = 35,403,137,018.34 - Step 5: Solve for x
x = 35,403,137,018.34/211,781.88 - Step 6: Final answer
x = 167,167.92
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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.