Finding the Fourth Proportional to 415,947.84, 623,921.28 and 135,464.64
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Solution
The fourth proportional to 415,947.84, 623,921.28 and 135,464.64 is: 203,196.80
Step by Step Solution
- Step 1: Write the proportion equation
415,947.84 : 623,921.28 = 135,464.64 : x - Step 2: Convert to fraction form
415,947.84/623,921.28 = 135,464.64/x - Step 3: Cross multiply
415,947.84x = 623,921.28 × 135,464.64 - Step 4: Simplify right side
415,947.84x = 84,519,271,583.54 - Step 5: Solve for x
x = 84,519,271,583.54/415,947.84 - Step 6: Final answer
x = 203,196.80
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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.