Finding the Fourth Proportional to 259,457.19, 388,901.48 and 101,512.05
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Solution
The fourth proportional to 259,457.19, 388,901.48 and 101,512.05 is: 152,156.84
Step by Step Solution
- Step 1: Write the proportion equation
259,457.19 : 388,901.48 = 101,512.05 : x - Step 2: Convert to fraction form
259,457.19/388,901.48 = 101,512.05/x - Step 3: Cross multiply
259,457.19x = 388,901.48 × 101,512.05 - Step 4: Simplify right side
259,457.19x = 39,478,185,975.27 - Step 5: Solve for x
x = 39,478,185,975.27/259,457.19 - Step 6: Final answer
x = 152,156.84
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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.