Finding the Fourth Proportional to 319,372.10, 440,714.47 and 183,428.18
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Solution
The fourth proportional to 319,372.10, 440,714.47 and 183,428.18 is: 253,119.96
Step by Step Solution
- Step 1: Write the proportion equation
319,372.10 : 440,714.47 = 183,428.18 : x - Step 2: Convert to fraction form
319,372.10/440,714.47 = 183,428.18/x - Step 3: Cross multiply
319,372.10x = 440,714.47 × 183,428.18 - Step 4: Simplify right side
319,372.10x = 80,839,452,466.23 - Step 5: Solve for x
x = 80,839,452,466.23/319,372.10 - Step 6: Final answer
x = 253,119.96
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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.