Finding the Fourth Proportional to 430,208.76, 593,663.70 and 239,218.05
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Solution
The fourth proportional to 430,208.76, 593,663.70 and 239,218.05 is: 330,107.35
Step by Step Solution
- Step 1: Write the proportion equation
430,208.76 : 593,663.70 = 239,218.05 : x - Step 2: Convert to fraction form
430,208.76/593,663.70 = 239,218.05/x - Step 3: Cross multiply
430,208.76x = 593,663.70 × 239,218.05 - Step 4: Simplify right side
430,208.76x = 142,015,073,566.85 - Step 5: Solve for x
x = 142,015,073,566.85/430,208.76 - Step 6: Final answer
x = 330,107.35
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.