Finding the Fourth Proportional to 318,338.71, 439,305.12 and 175,095.68
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Solution
The fourth proportional to 318,338.71, 439,305.12 and 175,095.68 is: 241,630.77
Step by Step Solution
- Step 1: Write the proportion equation
318,338.71 : 439,305.12 = 175,095.68 : x - Step 2: Convert to fraction form
318,338.71/439,305.12 = 175,095.68/x - Step 3: Cross multiply
318,338.71x = 439,305.12 × 175,095.68 - Step 4: Simplify right side
318,338.71x = 76,920,426,517.36 - Step 5: Solve for x
x = 76,920,426,517.36/318,338.71 - Step 6: Final answer
x = 241,630.77
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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.