Finding the Fourth Proportional to 245,779.28, 339,176.16 and 138,350.96
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Solution
The fourth proportional to 245,779.28, 339,176.16 and 138,350.96 is: 190,924.75
Step by Step Solution
- Step 1: Write the proportion equation
245,779.28 : 339,176.16 = 138,350.96 : x - Step 2: Convert to fraction form
245,779.28/339,176.16 = 138,350.96/x - Step 3: Cross multiply
245,779.28x = 339,176.16 × 138,350.96 - Step 4: Simplify right side
245,779.28x = 46,925,347,345.11 - Step 5: Solve for x
x = 46,925,347,345.11/245,779.28 - Step 6: Final answer
x = 190,924.75
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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.