Finding the Fourth Proportional to 205,740.24, 308,292.84 and 138,918.48
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Solution
The fourth proportional to 205,740.24, 308,292.84 and 138,918.48 is: 208,163.33
Step by Step Solution
- Step 1: Write the proportion equation
205,740.24 : 308,292.84 = 138,918.48 : x - Step 2: Convert to fraction form
205,740.24/308,292.84 = 138,918.48/x - Step 3: Cross multiply
205,740.24x = 308,292.84 × 138,918.48 - Step 4: Simplify right side
205,740.24x = 42,827,572,727.68 - Step 5: Solve for x
x = 42,827,572,727.68/205,740.24 - Step 6: Final answer
x = 208,163.33
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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.