Finding the Fourth Proportional to 316,174.68, 436,337.03 and 187,187.18
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Solution
The fourth proportional to 316,174.68, 436,337.03 and 187,187.18 is: 258,327.75
Step by Step Solution
- Step 1: Write the proportion equation
316,174.68 : 436,337.03 = 187,187.18 : x - Step 2: Convert to fraction form
316,174.68/436,337.03 = 187,187.18/x - Step 3: Cross multiply
316,174.68x = 436,337.03 × 187,187.18 - Step 4: Simplify right side
316,174.68x = 81,676,695,057.65 - Step 5: Solve for x
x = 81,676,695,057.65/316,174.68 - Step 6: Final answer
x = 258,327.75
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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.