Finding the Fourth Proportional to 302,876.56, 417,757.80 and 257,240.08
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Solution
The fourth proportional to 302,876.56, 417,757.80 and 257,240.08 is: 354,811.38
Step by Step Solution
- Step 1: Write the proportion equation
302,876.56 : 417,757.80 = 257,240.08 : x - Step 2: Convert to fraction form
302,876.56/417,757.80 = 257,240.08/x - Step 3: Cross multiply
302,876.56x = 417,757.80 × 257,240.08 - Step 4: Simplify right side
302,876.56x = 107,464,049,892.62 - Step 5: Solve for x
x = 107,464,049,892.62/302,876.56 - Step 6: Final answer
x = 354,811.38
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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.