Finding the Fourth Proportional to 313,930.80, 470,885.76 and 136,438.02
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Solution
The fourth proportional to 313,930.80, 470,885.76 and 136,438.02 is: 204,652.49
Step by Step Solution
- Step 1: Write the proportion equation
313,930.80 : 470,885.76 = 136,438.02 : x - Step 2: Convert to fraction form
313,930.80/470,885.76 = 136,438.02/x - Step 3: Cross multiply
313,930.80x = 470,885.76 × 136,438.02 - Step 4: Simplify right side
313,930.80x = 64,246,720,740.60 - Step 5: Solve for x
x = 64,246,720,740.60/313,930.80 - Step 6: Final answer
x = 204,652.49
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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.