Finding the Fourth Proportional to 307,090.78, 460,894.96 and 129,725.08
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Solution
The fourth proportional to 307,090.78, 460,894.96 and 129,725.08 is: 194,696.94
Step by Step Solution
- Step 1: Write the proportion equation
307,090.78 : 460,894.96 = 129,725.08 : x - Step 2: Convert to fraction form
307,090.78/460,894.96 = 129,725.08/x - Step 3: Cross multiply
307,090.78x = 460,894.96 × 129,725.08 - Step 4: Simplify right side
307,090.78x = 59,789,634,567.52 - Step 5: Solve for x
x = 59,789,634,567.52/307,090.78 - Step 6: Final answer
x = 194,696.94
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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.