Finding the Fourth Proportional to 272,886.38, 409,373.32 and 115,138.08
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Solution
The fourth proportional to 272,886.38, 409,373.32 and 115,138.08 is: 172,725.58
Step by Step Solution
- Step 1: Write the proportion equation
272,886.38 : 409,373.32 = 115,138.08 : x - Step 2: Convert to fraction form
272,886.38/409,373.32 = 115,138.08/x - Step 3: Cross multiply
272,886.38x = 409,373.32 × 115,138.08 - Step 4: Simplify right side
272,886.38x = 47,134,458,068.03 - Step 5: Solve for x
x = 47,134,458,068.03/272,886.38 - Step 6: Final answer
x = 172,725.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.