Finding the Fourth Proportional to 318,612.21, 439,668.12 and 175,344.87
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Solution
The fourth proportional to 318,612.21, 439,668.12 and 175,344.87 is: 241,966.71
Step by Step Solution
- Step 1: Write the proportion equation
318,612.21 : 439,668.12 = 175,344.87 : x - Step 2: Convert to fraction form
318,612.21/439,668.12 = 175,344.87/x - Step 3: Cross multiply
318,612.21x = 439,668.12 × 175,344.87 - Step 4: Simplify right side
318,612.21x = 77,093,549,344.54 - Step 5: Solve for x
x = 77,093,549,344.54/318,612.21 - Step 6: Final answer
x = 241,966.71
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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.