Finding the Fourth Proportional to 207,964.80, 312,055.20 and 97,156.80
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Solution
The fourth proportional to 207,964.80, 312,055.20 and 97,156.80 is: 145,785.66
Step by Step Solution
- Step 1: Write the proportion equation
207,964.80 : 312,055.20 = 97,156.80 : x - Step 2: Convert to fraction form
207,964.80/312,055.20 = 97,156.80/x - Step 3: Cross multiply
207,964.80x = 312,055.20 × 97,156.80 - Step 4: Simplify right side
207,964.80x = 30,318,284,655.36 - Step 5: Solve for x
x = 30,318,284,655.36/207,964.80 - Step 6: Final answer
x = 145,785.66
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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.