Finding the Fourth Proportional to 207,348.18, 310,840.80 and 172,102.68
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Solution
The fourth proportional to 207,348.18, 310,840.80 and 172,102.68 is: 258,003.40
Step by Step Solution
- Step 1: Write the proportion equation
207,348.18 : 310,840.80 = 172,102.68 : x - Step 2: Convert to fraction form
207,348.18/310,840.80 = 172,102.68/x - Step 3: Cross multiply
207,348.18x = 310,840.80 × 172,102.68 - Step 4: Simplify right side
207,348.18x = 53,496,534,733.34 - Step 5: Solve for x
x = 53,496,534,733.34/207,348.18 - Step 6: Final answer
x = 258,003.40
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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.