Finding the Fourth Proportional to 415,976.84, 623,965.28 and 135,494.08
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Solution
The fourth proportional to 415,976.84, 623,965.28 and 135,494.08 is: 203,241.13
Step by Step Solution
- Step 1: Write the proportion equation
415,976.84 : 623,965.28 = 135,494.08 : x - Step 2: Convert to fraction form
415,976.84/623,965.28 = 135,494.08/x - Step 3: Cross multiply
415,976.84x = 623,965.28 × 135,494.08 - Step 4: Simplify right side
415,976.84x = 84,543,601,565.54 - Step 5: Solve for x
x = 84,543,601,565.54/415,976.84 - Step 6: Final answer
x = 203,241.13
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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.