Finding the Fourth Proportional to 245,565.23, 368,407.96 and 85,618.99
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Solution
The fourth proportional to 245,565.23, 368,407.96 and 85,618.99 is: 128,449.44
Step by Step Solution
- Step 1: Write the proportion equation
245,565.23 : 368,407.96 = 85,618.99 : x - Step 2: Convert to fraction form
245,565.23/368,407.96 = 85,618.99/x - Step 3: Cross multiply
245,565.23x = 368,407.96 × 85,618.99 - Step 4: Simplify right side
245,565.23x = 31,542,716,308.09 - Step 5: Solve for x
x = 31,542,716,308.09/245,565.23 - Step 6: Final answer
x = 128,449.44
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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.