Finding the Fourth Proportional to 207,046.22, 310,962.98 and 128,707.88
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Solution
The fourth proportional to 207,046.22, 310,962.98 and 128,707.88 is: 193,306.53
Step by Step Solution
- Step 1: Write the proportion equation
207,046.22 : 310,962.98 = 128,707.88 : x - Step 2: Convert to fraction form
207,046.22/310,962.98 = 128,707.88/x - Step 3: Cross multiply
207,046.22x = 310,962.98 × 128,707.88 - Step 4: Simplify right side
207,046.22x = 40,023,384,681.24 - Step 5: Solve for x
x = 40,023,384,681.24/207,046.22 - Step 6: Final answer
x = 193,306.53
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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.