Finding the Fourth Proportional to 431,858.15, 647,768.52 and 147,574.07
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Solution
The fourth proportional to 431,858.15, 647,768.52 and 147,574.07 is: 221,354.71
Step by Step Solution
- Step 1: Write the proportion equation
431,858.15 : 647,768.52 = 147,574.07 : x - Step 2: Convert to fraction form
431,858.15/647,768.52 = 147,574.07/x - Step 3: Cross multiply
431,858.15x = 647,768.52 × 147,574.07 - Step 4: Simplify right side
431,858.15x = 95,593,836,176.41 - Step 5: Solve for x
x = 95,593,836,176.41/431,858.15 - Step 6: Final answer
x = 221,354.71
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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.