Finding the Fourth Proportional to 221,625.80, 331,970.70 and 146,781.80
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Solution
The fourth proportional to 221,625.80, 331,970.70 and 146,781.80 is: 219,862.75
Step by Step Solution
- Step 1: Write the proportion equation
221,625.80 : 331,970.70 = 146,781.80 : x - Step 2: Convert to fraction form
221,625.80/331,970.70 = 146,781.80/x - Step 3: Cross multiply
221,625.80x = 331,970.70 × 146,781.80 - Step 4: Simplify right side
221,625.80x = 48,727,256,893.26 - Step 5: Solve for x
x = 48,727,256,893.26/221,625.80 - Step 6: Final answer
x = 219,862.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.