Finding the Fourth Proportional to 415,798.98, 623,775.40 and 131,561.08
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Solution
The fourth proportional to 415,798.98, 623,775.40 and 131,561.08 is: 197,365.96
Step by Step Solution
- Step 1: Write the proportion equation
415,798.98 : 623,775.40 = 131,561.08 : x - Step 2: Convert to fraction form
415,798.98/623,775.40 = 131,561.08/x - Step 3: Cross multiply
415,798.98x = 623,775.40 × 131,561.08 - Step 4: Simplify right side
415,798.98x = 82,064,565,301.43 - Step 5: Solve for x
x = 82,064,565,301.43/415,798.98 - Step 6: Final answer
x = 197,365.96
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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.