Finding the Fourth Proportional to 306,851.36, 423,424.56 and 170,897.96
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Solution
The fourth proportional to 306,851.36, 423,424.56 and 170,897.96 is: 235,822.30
Step by Step Solution
- Step 1: Write the proportion equation
306,851.36 : 423,424.56 = 170,897.96 : x - Step 2: Convert to fraction form
306,851.36/423,424.56 = 170,897.96/x - Step 3: Cross multiply
306,851.36x = 423,424.56 × 170,897.96 - Step 4: Simplify right side
306,851.36x = 72,362,393,101.00 - Step 5: Solve for x
x = 72,362,393,101.00/306,851.36 - Step 6: Final answer
x = 235,822.30
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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.