Finding the Fourth Proportional to 284,709.03, 392,883.12 and 157,377.03
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Solution
The fourth proportional to 284,709.03, 392,883.12 and 157,377.03 is: 217,171.82
Step by Step Solution
- Step 1: Write the proportion equation
284,709.03 : 392,883.12 = 157,377.03 : x - Step 2: Convert to fraction form
284,709.03/392,883.12 = 157,377.03/x - Step 3: Cross multiply
284,709.03x = 392,883.12 × 157,377.03 - Step 4: Simplify right side
284,709.03x = 61,830,778,562.73 - Step 5: Solve for x
x = 61,830,778,562.73/284,709.03 - Step 6: Final answer
x = 217,171.82
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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.