Finding the Fourth Proportional to 163,179.12, 243,412.64 and 160,472.48
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Solution
The fourth proportional to 163,179.12, 243,412.64 and 160,472.48 is: 239,375.17
Step by Step Solution
- Step 1: Write the proportion equation
163,179.12 : 243,412.64 = 160,472.48 : x - Step 2: Convert to fraction form
163,179.12/243,412.64 = 160,472.48/x - Step 3: Cross multiply
163,179.12x = 243,412.64 × 160,472.48 - Step 4: Simplify right side
163,179.12x = 39,061,030,004.15 - Step 5: Solve for x
x = 39,061,030,004.15/163,179.12 - Step 6: Final answer
x = 239,375.17
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.