Finding the Fourth Proportional to 246,031.20, 339,521.49 and 138,635.81
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Solution
The fourth proportional to 246,031.20, 339,521.49 and 138,635.81 is: 191,316.53
Step by Step Solution
- Step 1: Write the proportion equation
246,031.20 : 339,521.49 = 138,635.81 : x - Step 2: Convert to fraction form
246,031.20/339,521.49 = 138,635.81/x - Step 3: Cross multiply
246,031.20x = 339,521.49 × 138,635.81 - Step 4: Simplify right side
246,031.20x = 47,069,835,080.95 - Step 5: Solve for x
x = 47,069,835,080.95/246,031.20 - Step 6: Final answer
x = 191,316.53
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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.