Finding the Fourth Proportional to 438,938.19, 658,242.05 and 172,553.09
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Solution
The fourth proportional to 438,938.19, 658,242.05 and 172,553.09 is: 258,764.67
Step by Step Solution
- Step 1: Write the proportion equation
438,938.19 : 658,242.05 = 172,553.09 : x - Step 2: Convert to fraction form
438,938.19/658,242.05 = 172,553.09/x - Step 3: Cross multiply
438,938.19x = 658,242.05 × 172,553.09 - Step 4: Simplify right side
438,938.19x = 113,581,695,541.46 - Step 5: Solve for x
x = 113,581,695,541.46/438,938.19 - Step 6: Final answer
x = 258,764.67
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.