Finding the Fourth Proportional to 315,722.08, 473,758.08 and 128,719.12
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Solution
The fourth proportional to 315,722.08, 473,758.08 and 128,719.12 is: 193,150.01
Step by Step Solution
- Step 1: Write the proportion equation
315,722.08 : 473,758.08 = 128,719.12 : x - Step 2: Convert to fraction form
315,722.08/473,758.08 = 128,719.12/x - Step 3: Cross multiply
315,722.08x = 473,758.08 × 128,719.12 - Step 4: Simplify right side
315,722.08x = 60,981,723,150.49 - Step 5: Solve for x
x = 60,981,723,150.49/315,722.08 - Step 6: Final answer
x = 193,150.01
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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.