Finding the Fourth Proportional to 212,424.24, 318,833.28 and 107,317.20
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Solution
The fourth proportional to 212,424.24, 318,833.28 and 107,317.20 is: 161,075.28
Step by Step Solution
- Step 1: Write the proportion equation
212,424.24 : 318,833.28 = 107,317.20 : x - Step 2: Convert to fraction form
212,424.24/318,833.28 = 107,317.20/x - Step 3: Cross multiply
212,424.24x = 318,833.28 × 107,317.20 - Step 4: Simplify right side
212,424.24x = 34,216,294,876.42 - Step 5: Solve for x
x = 34,216,294,876.42/212,424.24 - Step 6: Final answer
x = 161,075.28
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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.