Finding the Fourth Proportional to 318,889.38, 440,068.55 and 175,649.07
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Solution
The fourth proportional to 318,889.38, 440,068.55 and 175,649.07 is: 242,396.38
Step by Step Solution
- Step 1: Write the proportion equation
318,889.38 : 440,068.55 = 175,649.07 : x - Step 2: Convert to fraction form
318,889.38/440,068.55 = 175,649.07/x - Step 3: Cross multiply
318,889.38x = 440,068.55 × 175,649.07 - Step 4: Simplify right side
318,889.38x = 77,297,630,665.50 - Step 5: Solve for x
x = 77,297,630,665.50/318,889.38 - Step 6: Final answer
x = 242,396.38
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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.