Finding the Fourth Proportional to 351,491.28, 527,236.56 and 141,129.12
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Solution
The fourth proportional to 351,491.28, 527,236.56 and 141,129.12 is: 211,693.54
Step by Step Solution
- Step 1: Write the proportion equation
351,491.28 : 527,236.56 = 141,129.12 : x - Step 2: Convert to fraction form
351,491.28/527,236.56 = 141,129.12/x - Step 3: Cross multiply
351,491.28x = 527,236.56 × 141,129.12 - Step 4: Simplify right side
351,491.28x = 74,408,431,744.63 - Step 5: Solve for x
x = 74,408,431,744.63/351,491.28 - Step 6: Final answer
x = 211,693.54
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.