Finding the Fourth Proportional to 252,840.93, 348,916.86 and 138,118.20
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Solution
The fourth proportional to 252,840.93, 348,916.86 and 138,118.20 is: 190,601.14
Step by Step Solution
- Step 1: Write the proportion equation
252,840.93 : 348,916.86 = 138,118.20 : x - Step 2: Convert to fraction form
252,840.93/348,916.86 = 138,118.20/x - Step 3: Cross multiply
252,840.93x = 348,916.86 × 138,118.20 - Step 4: Simplify right side
252,840.93x = 48,191,768,652.85 - Step 5: Solve for x
x = 48,191,768,652.85/252,840.93 - Step 6: Final answer
x = 190,601.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.