Finding the Fourth Proportional to 291,789.81, 402,770.39 and 170,970.21
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Solution
The fourth proportional to 291,789.81, 402,770.39 and 170,970.21 is: 235,997.75
Step by Step Solution
- Step 1: Write the proportion equation
291,789.81 : 402,770.39 = 170,970.21 : x - Step 2: Convert to fraction form
291,789.81/402,770.39 = 170,970.21/x - Step 3: Cross multiply
291,789.81x = 402,770.39 × 170,970.21 - Step 4: Simplify right side
291,789.81x = 68,861,737,305.23 - Step 5: Solve for x
x = 68,861,737,305.23/291,789.81 - Step 6: Final answer
x = 235,997.75
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1.5x scale
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.