Finding the Fourth Proportional to 316,197.04, 436,355.36 and 172,953.96
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Solution
The fourth proportional to 316,197.04, 436,355.36 and 172,953.96 is: 238,678.35
Step by Step Solution
- Step 1: Write the proportion equation
316,197.04 : 436,355.36 = 172,953.96 : x - Step 2: Convert to fraction form
316,197.04/436,355.36 = 172,953.96/x - Step 3: Cross multiply
316,197.04x = 436,355.36 × 172,953.96 - Step 4: Simplify right side
316,197.04x = 75,469,387,479.23 - Step 5: Solve for x
x = 75,469,387,479.23/316,197.04 - Step 6: Final answer
x = 238,678.35
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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.