Finding the Fourth Proportional to 318,751.38, 439,886.58 and 175,516.55
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Solution
The fourth proportional to 318,751.38, 439,886.58 and 175,516.55 is: 242,218.17
Step by Step Solution
- Step 1: Write the proportion equation
318,751.38 : 439,886.58 = 175,516.55 : x - Step 2: Convert to fraction form
318,751.38/439,886.58 = 175,516.55/x - Step 3: Cross multiply
318,751.38x = 439,886.58 × 175,516.55 - Step 4: Simplify right side
318,751.38x = 77,207,374,692.13 - Step 5: Solve for x
x = 77,207,374,692.13/318,751.38 - Step 6: Final answer
x = 242,218.17
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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.