Finding the Fourth Proportional to 291,775.79, 402,650.26 and 157,639.79
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Solution
The fourth proportional to 291,775.79, 402,650.26 and 157,639.79 is: 217,542.73
Step by Step Solution
- Step 1: Write the proportion equation
291,775.79 : 402,650.26 = 157,639.79 : x - Step 2: Convert to fraction form
291,775.79/402,650.26 = 157,639.79/x - Step 3: Cross multiply
291,775.79x = 402,650.26 × 157,639.79 - Step 4: Simplify right side
291,775.79x = 63,473,703,042.37 - Step 5: Solve for x
x = 63,473,703,042.37/291,775.79 - Step 6: Final answer
x = 217,542.73
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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.