Finding the Fourth Proportional to 415,237.13, 623,243.17 and 212,985.08
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Solution
The fourth proportional to 415,237.13, 623,243.17 and 212,985.08 is: 319,676.37
Step by Step Solution
- Step 1: Write the proportion equation
415,237.13 : 623,243.17 = 212,985.08 : x - Step 2: Convert to fraction form
415,237.13/623,243.17 = 212,985.08/x - Step 3: Cross multiply
415,237.13x = 623,243.17 × 212,985.08 - Step 4: Simplify right side
415,237.13x = 132,741,497,447.55 - Step 5: Solve for x
x = 132,741,497,447.55/415,237.13 - Step 6: Final answer
x = 319,676.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.