Finding the Fourth Proportional to 415,406.40, 623,060.19 and 134,923.38
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Solution
The fourth proportional to 415,406.40, 623,060.19 and 134,923.38 is: 202,369.02
Step by Step Solution
- Step 1: Write the proportion equation
415,406.40 : 623,060.19 = 134,923.38 : x - Step 2: Convert to fraction form
415,406.40/623,060.19 = 134,923.38/x - Step 3: Cross multiply
415,406.40x = 623,060.19 × 134,923.38 - Step 4: Simplify right side
415,406.40x = 84,065,386,778.24 - Step 5: Solve for x
x = 84,065,386,778.24/415,406.40 - Step 6: Final answer
x = 202,369.02
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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.