Finding the Fourth Proportional to 342,727.36, 473,614.38 and 257,696.80
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Solution
The fourth proportional to 342,727.36, 473,614.38 and 257,696.80 is: 356,110.79
Step by Step Solution
- Step 1: Write the proportion equation
342,727.36 : 473,614.38 = 257,696.80 : x - Step 2: Convert to fraction form
342,727.36/473,614.38 = 257,696.80/x - Step 3: Cross multiply
342,727.36x = 473,614.38 × 257,696.80 - Step 4: Simplify right side
342,727.36x = 122,048,910,159.98 - Step 5: Solve for x
x = 122,048,910,159.98/342,727.36 - Step 6: Final answer
x = 356,110.79
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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.