Finding the Fourth Proportional to 268,338.96, 402,509.52 and 81,352.08
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Solution
The fourth proportional to 268,338.96, 402,509.52 and 81,352.08 is: 122,028.45
Step by Step Solution
- Step 1: Write the proportion equation
268,338.96 : 402,509.52 = 81,352.08 : x - Step 2: Convert to fraction form
268,338.96/402,509.52 = 81,352.08/x - Step 3: Cross multiply
268,338.96x = 402,509.52 × 81,352.08 - Step 4: Simplify right side
268,338.96x = 32,744,986,671.80 - Step 5: Solve for x
x = 32,744,986,671.80/268,338.96 - Step 6: Final answer
x = 122,028.45
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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.