Finding the Fourth Proportional to 251,943.84, 347,689.09 and 137,226.83
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Solution
The fourth proportional to 251,943.84, 347,689.09 and 137,226.83 is: 189,376.62
Step by Step Solution
- Step 1: Write the proportion equation
251,943.84 : 347,689.09 = 137,226.83 : x - Step 2: Convert to fraction form
251,943.84/347,689.09 = 137,226.83/x - Step 3: Cross multiply
251,943.84x = 347,689.09 × 137,226.83 - Step 4: Simplify right side
251,943.84x = 47,712,272,172.44 - Step 5: Solve for x
x = 47,712,272,172.44/251,943.84 - Step 6: Final answer
x = 189,376.62
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1.5x scale
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.