Finding the Fourth Proportional to 317,462.68, 476,194.02 and 128,009.08
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Solution
The fourth proportional to 317,462.68, 476,194.02 and 128,009.08 is: 192,013.62
Step by Step Solution
- Step 1: Write the proportion equation
317,462.68 : 476,194.02 = 128,009.08 : x - Step 2: Convert to fraction form
317,462.68/476,194.02 = 128,009.08/x - Step 3: Cross multiply
317,462.68x = 476,194.02 × 128,009.08 - Step 4: Simplify right side
317,462.68x = 60,957,158,401.70 - Step 5: Solve for x
x = 60,957,158,401.70/317,462.68 - Step 6: Final answer
x = 192,013.62
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1.5x scale
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.