Finding the Fourth Proportional to 374,782.14, 517,212.15 and 213,661.02
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Solution
The fourth proportional to 374,782.14, 517,212.15 and 213,661.02 is: 294,859.50
Step by Step Solution
- Step 1: Write the proportion equation
374,782.14 : 517,212.15 = 213,661.02 : x - Step 2: Convert to fraction form
374,782.14/517,212.15 = 213,661.02/x - Step 3: Cross multiply
374,782.14x = 517,212.15 × 213,661.02 - Step 4: Simplify right side
374,782.14x = 110,508,075,525.39 - Step 5: Solve for x
x = 110,508,075,525.39/374,782.14 - Step 6: Final answer
x = 294,859.50
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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.