Finding the Fourth Proportional to 318,869.36, 478,371.50 and 105,625.19
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Solution
The fourth proportional to 318,869.36, 478,371.50 and 105,625.19 is: 158,460.12
Step by Step Solution
- Step 1: Write the proportion equation
318,869.36 : 478,371.50 = 105,625.19 : x - Step 2: Convert to fraction form
318,869.36/478,371.50 = 105,625.19/x - Step 3: Cross multiply
318,869.36x = 478,371.50 × 105,625.19 - Step 4: Simplify right side
318,869.36x = 50,528,077,658.10 - Step 5: Solve for x
x = 50,528,077,658.10/318,869.36 - Step 6: Final answer
x = 158,460.12
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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.