Finding the Fourth Proportional to 415,804.24, 623,641.56 and 135,319.60
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Solution
The fourth proportional to 415,804.24, 623,641.56 and 135,319.60 is: 202,958.31
Step by Step Solution
- Step 1: Write the proportion equation
415,804.24 : 623,641.56 = 135,319.60 : x - Step 2: Convert to fraction form
415,804.24/623,641.56 = 135,319.60/x - Step 3: Cross multiply
415,804.24x = 623,641.56 × 135,319.60 - Step 4: Simplify right side
415,804.24x = 84,390,926,442.58 - Step 5: Solve for x
x = 84,390,926,442.58/415,804.24 - Step 6: Final answer
x = 202,958.31
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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.