Finding the Fourth Proportional to 313,929.80, 470,894.70 and 92,313.80
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Solution
The fourth proportional to 313,929.80, 470,894.70 and 92,313.80 is: 138,470.70
Step by Step Solution
- Step 1: Write the proportion equation
313,929.80 : 470,894.70 = 92,313.80 : x - Step 2: Convert to fraction form
313,929.80/470,894.70 = 92,313.80/x - Step 3: Cross multiply
313,929.80x = 470,894.70 × 92,313.80 - Step 4: Simplify right side
313,929.80x = 43,470,077,518.05 - Step 5: Solve for x
x = 43,470,077,518.05/313,929.80 - Step 6: Final answer
x = 138,470.70
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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.