Finding the Fourth Proportional to 310,837.68, 428,955.30 and 174,871.68
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Solution
The fourth proportional to 310,837.68, 428,955.30 and 174,871.68 is: 241,322.53
Step by Step Solution
- Step 1: Write the proportion equation
310,837.68 : 428,955.30 = 174,871.68 : x - Step 2: Convert to fraction form
310,837.68/428,955.30 = 174,871.68/x - Step 3: Cross multiply
310,837.68x = 428,955.30 × 174,871.68 - Step 4: Simplify right side
310,837.68x = 75,012,133,955.90 - Step 5: Solve for x
x = 75,012,133,955.90/310,837.68 - Step 6: Final answer
x = 241,322.53
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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.