Finding the Fourth Proportional to 145,349.80, 218,024.70 and 126,917.80
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Solution
The fourth proportional to 145,349.80, 218,024.70 and 126,917.80 is: 190,376.70
Step by Step Solution
- Step 1: Write the proportion equation
145,349.80 : 218,024.70 = 126,917.80 : x - Step 2: Convert to fraction form
145,349.80/218,024.70 = 126,917.80/x - Step 3: Cross multiply
145,349.80x = 218,024.70 × 126,917.80 - Step 4: Simplify right side
145,349.80x = 27,671,215,269.66 - Step 5: Solve for x
x = 27,671,215,269.66/145,349.80 - Step 6: Final answer
x = 190,376.70
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1.5x scale
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.