Finding the Fourth Proportional to 235,435.19, 353,374.73 and 85,820.09
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Solution
The fourth proportional to 235,435.19, 353,374.73 and 85,820.09 is: 128,811.04
Step by Step Solution
- Step 1: Write the proportion equation
235,435.19 : 353,374.73 = 85,820.09 : x - Step 2: Convert to fraction form
235,435.19/353,374.73 = 85,820.09/x - Step 3: Cross multiply
235,435.19x = 353,374.73 × 85,820.09 - Step 4: Simplify right side
235,435.19x = 30,326,650,703.23 - Step 5: Solve for x
x = 30,326,650,703.23/235,435.19 - Step 6: Final answer
x = 128,811.04
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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.