Finding the Fourth Proportional to 371,531.52, 558,014.40 and 318,343.68
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Solution
The fourth proportional to 371,531.52, 558,014.40 and 318,343.68 is: 478,129.98
Step by Step Solution
- Step 1: Write the proportion equation
371,531.52 : 558,014.40 = 318,343.68 : x - Step 2: Convert to fraction form
371,531.52/558,014.40 = 318,343.68/x - Step 3: Cross multiply
371,531.52x = 558,014.40 × 318,343.68 - Step 4: Simplify right side
371,531.52x = 177,640,357,588.99 - Step 5: Solve for x
x = 177,640,357,588.99/371,531.52 - Step 6: Final answer
x = 478,129.98
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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.