Finding the Fourth Proportional to 381,351.70, 572,027.55 and 223,887.70
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Solution
The fourth proportional to 381,351.70, 572,027.55 and 223,887.70 is: 335,831.55
Step by Step Solution
- Step 1: Write the proportion equation
381,351.70 : 572,027.55 = 223,887.70 : x - Step 2: Convert to fraction form
381,351.70/572,027.55 = 223,887.70/x - Step 3: Cross multiply
381,351.70x = 572,027.55 × 223,887.70 - Step 4: Simplify right side
381,351.70x = 128,069,932,506.14 - Step 5: Solve for x
x = 128,069,932,506.14/381,351.70 - Step 6: Final answer
x = 335,831.55
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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.