Finding the Fourth Proportional to 246,394.78, 340,024.74 and 138,964.58
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Solution
The fourth proportional to 246,394.78, 340,024.74 and 138,964.58 is: 191,771.09
Step by Step Solution
- Step 1: Write the proportion equation
246,394.78 : 340,024.74 = 138,964.58 : x - Step 2: Convert to fraction form
246,394.78/340,024.74 = 138,964.58/x - Step 3: Cross multiply
246,394.78x = 340,024.74 × 138,964.58 - Step 4: Simplify right side
246,394.78x = 47,251,394,237.56 - Step 5: Solve for x
x = 47,251,394,237.56/246,394.78 - Step 6: Final answer
x = 191,771.09
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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.