Finding the Fourth Proportional to 153,220.40, 211,269.80 and 107,883.88
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Solution
The fourth proportional to 153,220.40, 211,269.80 and 107,883.88 is: 148,756.99
Step by Step Solution
- Step 1: Write the proportion equation
153,220.40 : 211,269.80 = 107,883.88 : x - Step 2: Convert to fraction form
153,220.40/211,269.80 = 107,883.88/x - Step 3: Cross multiply
153,220.40x = 211,269.80 × 107,883.88 - Step 4: Simplify right side
153,220.40x = 22,792,605,750.82 - Step 5: Solve for x
x = 22,792,605,750.82/153,220.40 - Step 6: Final answer
x = 148,756.99
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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.