Finding the Fourth Proportional to 292,749.05, 403,947.78 and 170,268.55
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Solution
The fourth proportional to 292,749.05, 403,947.78 and 170,268.55 is: 234,943.89
Step by Step Solution
- Step 1: Write the proportion equation
292,749.05 : 403,947.78 = 170,268.55 : x - Step 2: Convert to fraction form
292,749.05/403,947.78 = 170,268.55/x - Step 3: Cross multiply
292,749.05x = 403,947.78 × 170,268.55 - Step 4: Simplify right side
292,749.05x = 68,779,601,127.94 - Step 5: Solve for x
x = 68,779,601,127.94/292,749.05 - Step 6: Final answer
x = 234,943.89
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1.5x scale
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.