Finding the Fourth Proportional to 251,792.84, 347,473.86 and 138,615.68
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Solution
The fourth proportional to 251,792.84, 347,473.86 and 138,615.68 is: 191,289.50
Step by Step Solution
- Step 1: Write the proportion equation
251,792.84 : 347,473.86 = 138,615.68 : x - Step 2: Convert to fraction form
251,792.84/347,473.86 = 138,615.68/x - Step 3: Cross multiply
251,792.84x = 347,473.86 × 138,615.68 - Step 4: Simplify right side
251,792.84x = 48,165,325,386.12 - Step 5: Solve for x
x = 48,165,325,386.12/251,792.84 - Step 6: Final answer
x = 191,289.50
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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.