Finding the Fourth Proportional to 208,124.80, 312,295.20 and 97,316.80
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Solution
The fourth proportional to 208,124.80, 312,295.20 and 97,316.80 is: 146,025.70
Step by Step Solution
- Step 1: Write the proportion equation
208,124.80 : 312,295.20 = 97,316.80 : x - Step 2: Convert to fraction form
208,124.80/312,295.20 = 97,316.80/x - Step 3: Cross multiply
208,124.80x = 312,295.20 × 97,316.80 - Step 4: Simplify right side
208,124.80x = 30,391,569,519.36 - Step 5: Solve for x
x = 30,391,569,519.36/208,124.80 - Step 6: Final answer
x = 146,025.70
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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.