Finding the Fourth Proportional to 318,842.18, 439,996.80 and 175,615.58
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Solution
The fourth proportional to 318,842.18, 439,996.80 and 175,615.58 is: 242,346.52
Step by Step Solution
- Step 1: Write the proportion equation
318,842.18 : 439,996.80 = 175,615.58 : x - Step 2: Convert to fraction form
318,842.18/439,996.80 = 175,615.58/x - Step 3: Cross multiply
318,842.18x = 439,996.80 × 175,615.58 - Step 4: Simplify right side
318,842.18x = 77,270,293,230.14 - Step 5: Solve for x
x = 77,270,293,230.14/318,842.18 - Step 6: Final answer
x = 242,346.52
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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.