Finding the Fourth Proportional to 313,101.84, 432,078.12 and 169,861.44
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Solution
The fourth proportional to 313,101.84, 432,078.12 and 169,861.44 is: 234,407.47
Step by Step Solution
- Step 1: Write the proportion equation
313,101.84 : 432,078.12 = 169,861.44 : x - Step 2: Convert to fraction form
313,101.84/432,078.12 = 169,861.44/x - Step 3: Cross multiply
313,101.84x = 432,078.12 × 169,861.44 - Step 4: Simplify right side
313,101.84x = 73,393,411,655.69 - Step 5: Solve for x
x = 73,393,411,655.69/313,101.84 - Step 6: Final answer
x = 234,407.47
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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.