Finding the Fourth Proportional to 310,557.09, 428,558.80 and 174,596.74
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Solution
The fourth proportional to 310,557.09, 428,558.80 and 174,596.74 is: 240,937.89
Step by Step Solution
- Step 1: Write the proportion equation
310,557.09 : 428,558.80 = 174,596.74 : x - Step 2: Convert to fraction form
310,557.09/428,558.80 = 174,596.74/x - Step 3: Cross multiply
310,557.09x = 428,558.80 × 174,596.74 - Step 4: Simplify right side
310,557.09x = 74,824,970,013.22 - Step 5: Solve for x
x = 74,824,970,013.22/310,557.09 - Step 6: Final answer
x = 240,937.89
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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.