Finding the Fourth Proportional to 251,679.74, 347,239.85 and 142,766.12
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Solution
The fourth proportional to 251,679.74, 347,239.85 and 142,766.12 is: 196,972.90
Step by Step Solution
- Step 1: Write the proportion equation
251,679.74 : 347,239.85 = 142,766.12 : x - Step 2: Convert to fraction form
251,679.74/347,239.85 = 142,766.12/x - Step 3: Cross multiply
251,679.74x = 347,239.85 × 142,766.12 - Step 4: Simplify right side
251,679.74x = 49,574,086,248.15 - Step 5: Solve for x
x = 49,574,086,248.15/251,679.74 - Step 6: Final answer
x = 196,972.90
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1.5x scale
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.