Finding the Fourth Proportional to 292,062.72, 402,969.96 and 171,139.08
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Solution
The fourth proportional to 292,062.72, 402,969.96 and 171,139.08 is: 236,127.05
Step by Step Solution
- Step 1: Write the proportion equation
292,062.72 : 402,969.96 = 171,139.08 : x - Step 2: Convert to fraction form
292,062.72/402,969.96 = 171,139.08/x - Step 3: Cross multiply
292,062.72x = 402,969.96 × 171,139.08 - Step 4: Simplify right side
292,062.72x = 68,963,908,222.04 - Step 5: Solve for x
x = 68,963,908,222.04/292,062.72 - Step 6: Final answer
x = 236,127.05
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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.