Finding the Fourth Proportional to 310,128.01, 427,986.99 and 174,185.92
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Solution
The fourth proportional to 310,128.01, 427,986.99 and 174,185.92 is: 240,382.38
Step by Step Solution
- Step 1: Write the proportion equation
310,128.01 : 427,986.99 = 174,185.92 : x - Step 2: Convert to fraction form
310,128.01/427,986.99 = 174,185.92/x - Step 3: Cross multiply
310,128.01x = 427,986.99 × 174,185.92 - Step 4: Simplify right side
310,128.01x = 74,549,307,601.18 - Step 5: Solve for x
x = 74,549,307,601.18/310,128.01 - Step 6: Final answer
x = 240,382.38
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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.