Finding the Fourth Proportional to 175,787.69, 242,520.08 and 129,957.41
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Solution
The fourth proportional to 175,787.69, 242,520.08 and 129,957.41 is: 179,291.75
Step by Step Solution
- Step 1: Write the proportion equation
175,787.69 : 242,520.08 = 129,957.41 : x - Step 2: Convert to fraction form
175,787.69/242,520.08 = 129,957.41/x - Step 3: Cross multiply
175,787.69x = 242,520.08 × 129,957.41 - Step 4: Simplify right side
175,787.69x = 31,517,281,426.31 - Step 5: Solve for x
x = 31,517,281,426.31/175,787.69 - Step 6: Final answer
x = 179,291.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.