Finding the Fourth Proportional to 217,432.63, 299,779.27 and 140,816.35
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Solution
The fourth proportional to 217,432.63, 299,779.27 and 140,816.35 is: 194,146.68
Step by Step Solution
- Step 1: Write the proportion equation
217,432.63 : 299,779.27 = 140,816.35 : x - Step 2: Convert to fraction form
217,432.63/299,779.27 = 140,816.35/x - Step 3: Cross multiply
217,432.63x = 299,779.27 × 140,816.35 - Step 4: Simplify right side
217,432.63x = 42,213,822,607.06 - Step 5: Solve for x
x = 42,213,822,607.06/217,432.63 - Step 6: Final answer
x = 194,146.68
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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.