Finding the Fourth Proportional to 212,346.68, 318,509.40 and 79,216.52
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Solution
The fourth proportional to 212,346.68, 318,509.40 and 79,216.52 is: 118,820.82
Step by Step Solution
- Step 1: Write the proportion equation
212,346.68 : 318,509.40 = 79,216.52 : x - Step 2: Convert to fraction form
212,346.68/318,509.40 = 79,216.52/x - Step 3: Cross multiply
212,346.68x = 318,509.40 × 79,216.52 - Step 4: Simplify right side
212,346.68x = 25,231,206,255.29 - Step 5: Solve for x
x = 25,231,206,255.29/212,346.68 - Step 6: Final answer
x = 118,820.82
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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.