Finding the Fourth Proportional to 318,363.15, 439,338.69 and 175,120.05
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Solution
The fourth proportional to 318,363.15, 439,338.69 and 175,120.05 is: 241,664.32
Step by Step Solution
- Step 1: Write the proportion equation
318,363.15 : 439,338.69 = 175,120.05 : x - Step 2: Convert to fraction form
318,363.15/439,338.69 = 175,120.05/x - Step 3: Cross multiply
318,363.15x = 439,338.69 × 175,120.05 - Step 4: Simplify right side
318,363.15x = 76,937,013,359.73 - Step 5: Solve for x
x = 76,937,013,359.73/318,363.15 - Step 6: Final answer
x = 241,664.32
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1.5x scale
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.