Finding the Fourth Proportional to 185,707.67, 256,516.97 and 153,572.09
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Solution
The fourth proportional to 185,707.67, 256,516.97 and 153,572.09 is: 212,128.27
Step by Step Solution
- Step 1: Write the proportion equation
185,707.67 : 256,516.97 = 153,572.09 : x - Step 2: Convert to fraction form
185,707.67/256,516.97 = 153,572.09/x - Step 3: Cross multiply
185,707.67x = 256,516.97 × 153,572.09 - Step 4: Simplify right side
185,707.67x = 39,393,845,152.92 - Step 5: Solve for x
x = 39,393,845,152.92/185,707.67 - Step 6: Final answer
x = 212,128.27
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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.