Finding the Fourth Proportional to 206,925.84, 310,332.12 and 57,130.32
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Solution
The fourth proportional to 206,925.84, 310,332.12 and 57,130.32 is: 85,679.84
Step by Step Solution
- Step 1: Write the proportion equation
206,925.84 : 310,332.12 = 57,130.32 : x - Step 2: Convert to fraction form
206,925.84/310,332.12 = 57,130.32/x - Step 3: Cross multiply
206,925.84x = 310,332.12 × 57,130.32 - Step 4: Simplify right side
206,925.84x = 17,729,373,321.88 - Step 5: Solve for x
x = 17,729,373,321.88/206,925.84 - Step 6: Final answer
x = 85,679.84
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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.