Finding the Fourth Proportional to 163,971.80, 245,957.70 and 143,235.80
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Solution
The fourth proportional to 163,971.80, 245,957.70 and 143,235.80 is: 214,853.70
Step by Step Solution
- Step 1: Write the proportion equation
163,971.80 : 245,957.70 = 143,235.80 : x - Step 2: Convert to fraction form
163,971.80/245,957.70 = 143,235.80/x - Step 3: Cross multiply
163,971.80x = 245,957.70 × 143,235.80 - Step 4: Simplify right side
163,971.80x = 35,229,947,925.66 - Step 5: Solve for x
x = 35,229,947,925.66/163,971.80 - Step 6: Final answer
x = 214,853.70
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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.