Finding the Fourth Proportional to 315,013.95, 434,525.99 and 201,639.87
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Solution
The fourth proportional to 315,013.95, 434,525.99 and 201,639.87 is: 278,139.31
Step by Step Solution
- Step 1: Write the proportion equation
315,013.95 : 434,525.99 = 201,639.87 : x - Step 2: Convert to fraction form
315,013.95/434,525.99 = 201,639.87/x - Step 3: Cross multiply
315,013.95x = 434,525.99 × 201,639.87 - Step 4: Simplify right side
315,013.95x = 87,617,763,127.02 - Step 5: Solve for x
x = 87,617,763,127.02/315,013.95 - Step 6: Final answer
x = 278,139.31
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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.