Finding the Fourth Proportional to 272,911.72, 376,645.74 and 152,072.68
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Solution
The fourth proportional to 272,911.72, 376,645.74 and 152,072.68 is: 209,875.66
Step by Step Solution
- Step 1: Write the proportion equation
272,911.72 : 376,645.74 = 152,072.68 : x - Step 2: Convert to fraction form
272,911.72/376,645.74 = 152,072.68/x - Step 3: Cross multiply
272,911.72x = 376,645.74 × 152,072.68 - Step 4: Simplify right side
272,911.72x = 57,277,527,092.38 - Step 5: Solve for x
x = 57,277,527,092.38/272,911.72 - Step 6: Final answer
x = 209,875.66
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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.