Finding the Fourth Proportional to 415,801.98, 623,779.90 and 131,564.08
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Solution
The fourth proportional to 415,801.98, 623,779.90 and 131,564.08 is: 197,370.46
Step by Step Solution
- Step 1: Write the proportion equation
415,801.98 : 623,779.90 = 131,564.08 : x - Step 2: Convert to fraction form
415,801.98/623,779.90 = 131,564.08/x - Step 3: Cross multiply
415,801.98x = 623,779.90 × 131,564.08 - Step 4: Simplify right side
415,801.98x = 82,067,028,665.99 - Step 5: Solve for x
x = 82,067,028,665.99/415,801.98 - Step 6: Final answer
x = 197,370.46
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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.