Finding the Fourth Proportional to 371,645.79, 512,782.97 and 218,690.65
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Solution
The fourth proportional to 371,645.79, 512,782.97 and 218,690.65 is: 301,741.19
Step by Step Solution
- Step 1: Write the proportion equation
371,645.79 : 512,782.97 = 218,690.65 : x - Step 2: Convert to fraction form
371,645.79/512,782.97 = 218,690.65/x - Step 3: Cross multiply
371,645.79x = 512,782.97 × 218,690.65 - Step 4: Simplify right side
371,645.79x = 112,140,840,565.76 - Step 5: Solve for x
x = 112,140,840,565.76/371,645.79 - Step 6: Final answer
x = 301,741.19
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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.