Finding the Fourth Proportional to 318,930.17, 440,102.74 and 175,690.21
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Solution
The fourth proportional to 318,930.17, 440,102.74 and 175,690.21 is: 242,440.98
Step by Step Solution
- Step 1: Write the proportion equation
318,930.17 : 440,102.74 = 175,690.21 : x - Step 2: Convert to fraction form
318,930.17/440,102.74 = 175,690.21/x - Step 3: Cross multiply
318,930.17x = 440,102.74 × 175,690.21 - Step 4: Simplify right side
318,930.17x = 77,321,741,933.72 - Step 5: Solve for x
x = 77,321,741,933.72/318,930.17 - Step 6: Final answer
x = 242,440.98
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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.