Finding the Fourth Proportional to 292,268.66, 438,430.93 and 81,905.99
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Solution
The fourth proportional to 292,268.66, 438,430.93 and 81,905.99 is: 122,866.81
Step by Step Solution
- Step 1: Write the proportion equation
292,268.66 : 438,430.93 = 81,905.99 : x - Step 2: Convert to fraction form
292,268.66/438,430.93 = 81,905.99/x - Step 3: Cross multiply
292,268.66x = 438,430.93 × 81,905.99 - Step 4: Simplify right side
292,268.66x = 35,910,116,971.35 - Step 5: Solve for x
x = 35,910,116,971.35/292,268.66 - Step 6: Final answer
x = 122,866.81
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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.