Finding the Fourth Proportional to 163,405.80, 245,108.70 and 142,669.80
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Solution
The fourth proportional to 163,405.80, 245,108.70 and 142,669.80 is: 214,004.70
Step by Step Solution
- Step 1: Write the proportion equation
163,405.80 : 245,108.70 = 142,669.80 : x - Step 2: Convert to fraction form
163,405.80/245,108.70 = 142,669.80/x - Step 3: Cross multiply
163,405.80x = 245,108.70 × 142,669.80 - Step 4: Simplify right side
163,405.80x = 34,969,609,207.26 - Step 5: Solve for x
x = 34,969,609,207.26/163,405.80 - Step 6: Final answer
x = 214,004.70
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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.