Finding the Fourth Proportional to 328,480.08, 492,719.28 and 79,162.08
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Solution
The fourth proportional to 328,480.08, 492,719.28 and 79,162.08 is: 118,742.92
Step by Step Solution
- Step 1: Write the proportion equation
328,480.08 : 492,719.28 = 79,162.08 : x - Step 2: Convert to fraction form
328,480.08/492,719.28 = 79,162.08/x - Step 3: Cross multiply
328,480.08x = 492,719.28 × 79,162.08 - Step 4: Simplify right side
328,480.08x = 39,004,683,060.90 - Step 5: Solve for x
x = 39,004,683,060.90/328,480.08 - Step 6: Final answer
x = 118,742.92
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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.