Finding the Fourth Proportional to 292,070.39, 438,136.34 and 121,272.71
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Solution
The fourth proportional to 292,070.39, 438,136.34 and 121,272.71 is: 181,921.83
Step by Step Solution
- Step 1: Write the proportion equation
292,070.39 : 438,136.34 = 121,272.71 : x - Step 2: Convert to fraction form
292,070.39/438,136.34 = 121,272.71/x - Step 3: Cross multiply
292,070.39x = 438,136.34 × 121,272.71 - Step 4: Simplify right side
292,070.39x = 53,133,978,504.24 - Step 5: Solve for x
x = 53,133,978,504.24/292,070.39 - Step 6: Final answer
x = 181,921.83
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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.