Finding the Fourth Proportional to 310,313.80, 465,470.70 and 192,215.80
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Solution
The fourth proportional to 310,313.80, 465,470.70 and 192,215.80 is: 288,323.70
Step by Step Solution
- Step 1: Write the proportion equation
310,313.80 : 465,470.70 = 192,215.80 : x - Step 2: Convert to fraction form
310,313.80/465,470.70 = 192,215.80/x - Step 3: Cross multiply
310,313.80x = 465,470.70 × 192,215.80 - Step 4: Simplify right side
310,313.80x = 89,470,822,977.06 - Step 5: Solve for x
x = 89,470,822,977.06/310,313.80 - Step 6: Final answer
x = 288,323.70
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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.