Finding the Fourth Proportional to 438,908.68, 605,706.42 and 247,930.12
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Solution
The fourth proportional to 438,908.68, 605,706.42 and 247,930.12 is: 342,150.59
Step by Step Solution
- Step 1: Write the proportion equation
438,908.68 : 605,706.42 = 247,930.12 : x - Step 2: Convert to fraction form
438,908.68/605,706.42 = 247,930.12/x - Step 3: Cross multiply
438,908.68x = 605,706.42 × 247,930.12 - Step 4: Simplify right side
438,908.68x = 150,172,865,395.37 - Step 5: Solve for x
x = 150,172,865,395.37/438,908.68 - Step 6: Final answer
x = 342,150.59
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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.