Finding the Fourth Proportional to 392,804.80, 589,207.20 and 97,316.80
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Solution
The fourth proportional to 392,804.80, 589,207.20 and 97,316.80 is: 145,975.20
Step by Step Solution
- Step 1: Write the proportion equation
392,804.80 : 589,207.20 = 97,316.80 : x - Step 2: Convert to fraction form
392,804.80/589,207.20 = 97,316.80/x - Step 3: Cross multiply
392,804.80x = 589,207.20 × 97,316.80 - Step 4: Simplify right side
392,804.80x = 57,339,759,240.96 - Step 5: Solve for x
x = 57,339,759,240.96/392,804.80 - Step 6: Final answer
x = 145,975.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.