Finding the Fourth Proportional to 259,309.16, 388,336.70 and 214,606.84
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Solution
The fourth proportional to 259,309.16, 388,336.70 and 214,606.84 is: 321,391.32
Step by Step Solution
- Step 1: Write the proportion equation
259,309.16 : 388,336.70 = 214,606.84 : x - Step 2: Convert to fraction form
259,309.16/388,336.70 = 214,606.84/x - Step 3: Cross multiply
259,309.16x = 388,336.70 × 214,606.84 - Step 4: Simplify right side
259,309.16x = 83,339,712,043.03 - Step 5: Solve for x
x = 83,339,712,043.03/259,309.16 - Step 6: Final answer
x = 321,391.32
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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.