Finding the Fourth Proportional to 323,617.97, 485,426.53 and 86,960.65
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Solution
The fourth proportional to 323,617.97, 485,426.53 and 86,960.65 is: 130,440.86
Step by Step Solution
- Step 1: Write the proportion equation
323,617.97 : 485,426.53 = 86,960.65 : x - Step 2: Convert to fraction form
323,617.97/485,426.53 = 86,960.65/x - Step 3: Cross multiply
323,617.97x = 485,426.53 × 86,960.65 - Step 4: Simplify right side
323,617.97x = 42,213,005,471.18 - Step 5: Solve for x
x = 42,213,005,471.18/323,617.97 - Step 6: Final answer
x = 130,440.86
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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.