Finding the Fourth Proportional to 316,459.68, 436,714.83 and 173,228.79
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Solution
The fourth proportional to 316,459.68, 436,714.83 and 173,228.79 is: 239,055.99
Step by Step Solution
- Step 1: Write the proportion equation
316,459.68 : 436,714.83 = 173,228.79 : x - Step 2: Convert to fraction form
316,459.68/436,714.83 = 173,228.79/x - Step 3: Cross multiply
316,459.68x = 436,714.83 × 173,228.79 - Step 4: Simplify right side
316,459.68x = 75,651,581,575.96 - Step 5: Solve for x
x = 75,651,581,575.96/316,459.68 - Step 6: Final answer
x = 239,055.99
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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.