Finding the Fourth Proportional to 312,931.11, 469,391.79 and 125,937.75
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Solution
The fourth proportional to 312,931.11, 469,391.79 and 125,937.75 is: 188,904.66
Step by Step Solution
- Step 1: Write the proportion equation
312,931.11 : 469,391.79 = 125,937.75 : x - Step 2: Convert to fraction form
312,931.11/469,391.79 = 125,937.75/x - Step 3: Cross multiply
312,931.11x = 469,391.79 × 125,937.75 - Step 4: Simplify right side
312,931.11x = 59,114,145,901.07 - Step 5: Solve for x
x = 59,114,145,901.07/312,931.11 - Step 6: Final answer
x = 188,904.66
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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.