Finding the Fourth Proportional to 251,695.61, 347,261.76 and 142,781.99
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Solution
The fourth proportional to 251,695.61, 347,261.76 and 142,781.99 is: 196,994.80
Step by Step Solution
- Step 1: Write the proportion equation
251,695.61 : 347,261.76 = 142,781.99 : x - Step 2: Convert to fraction form
251,695.61/347,261.76 = 142,781.99/x - Step 3: Cross multiply
251,695.61x = 347,261.76 × 142,781.99 - Step 4: Simplify right side
251,695.61x = 49,582,725,143.70 - Step 5: Solve for x
x = 49,582,725,143.70/251,695.61 - Step 6: Final answer
x = 196,994.80
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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.