Finding the Fourth Proportional to 415,809.81, 623,709.18 and 100,264.14
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Solution
The fourth proportional to 415,809.81, 623,709.18 and 100,264.14 is: 150,394.88
Step by Step Solution
- Step 1: Write the proportion equation
415,809.81 : 623,709.18 = 100,264.14 : x - Step 2: Convert to fraction form
415,809.81/623,709.18 = 100,264.14/x - Step 3: Cross multiply
415,809.81x = 623,709.18 × 100,264.14 - Step 4: Simplify right side
415,809.81x = 62,535,664,542.81 - Step 5: Solve for x
x = 62,535,664,542.81/415,809.81 - Step 6: Final answer
x = 150,394.88
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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.