Finding the Fourth Proportional to 318,395.84, 439,449.05 and 182,520.95
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Solution
The fourth proportional to 318,395.84, 439,449.05 and 182,520.95 is: 251,914.90
Step by Step Solution
- Step 1: Write the proportion equation
318,395.84 : 439,449.05 = 182,520.95 : x - Step 2: Convert to fraction form
318,395.84/439,449.05 = 182,520.95/x - Step 3: Cross multiply
318,395.84x = 439,449.05 × 182,520.95 - Step 4: Simplify right side
318,395.84x = 80,208,656,341.65 - Step 5: Solve for x
x = 80,208,656,341.65/318,395.84 - Step 6: Final answer
x = 251,914.90
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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.