Finding the Fourth Proportional to 331,489.80, 497,234.70 and 238,177.80
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Solution
The fourth proportional to 331,489.80, 497,234.70 and 238,177.80 is: 357,266.70
Step by Step Solution
- Step 1: Write the proportion equation
331,489.80 : 497,234.70 = 238,177.80 : x - Step 2: Convert to fraction form
331,489.80/497,234.70 = 238,177.80/x - Step 3: Cross multiply
331,489.80x = 497,234.70 × 238,177.80 - Step 4: Simplify right side
331,489.80x = 118,430,266,929.66 - Step 5: Solve for x
x = 118,430,266,929.66/331,489.80 - Step 6: Final answer
x = 357,266.70
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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.