Finding the Fourth Proportional to 374,421.98, 516,620.94 and 221,468.60
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Solution
The fourth proportional to 374,421.98, 516,620.94 and 221,468.60 is: 305,578.52
Step by Step Solution
- Step 1: Write the proportion equation
374,421.98 : 516,620.94 = 221,468.60 : x - Step 2: Convert to fraction form
374,421.98/516,620.94 = 221,468.60/x - Step 3: Cross multiply
374,421.98x = 516,620.94 × 221,468.60 - Step 4: Simplify right side
374,421.98x = 114,415,316,312.48 - Step 5: Solve for x
x = 114,415,316,312.48/374,421.98 - Step 6: Final answer
x = 305,578.52
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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.