Finding the Fourth Proportional to 381,703.20, 572,554.80 and 224,239.20
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Solution
The fourth proportional to 381,703.20, 572,554.80 and 224,239.20 is: 336,358.80
Step by Step Solution
- Step 1: Write the proportion equation
381,703.20 : 572,554.80 = 224,239.20 : x - Step 2: Convert to fraction form
381,703.20/572,554.80 = 224,239.20/x - Step 3: Cross multiply
381,703.20x = 572,554.80 × 224,239.20 - Step 4: Simplify right side
381,703.20x = 128,389,230,308.16 - Step 5: Solve for x
x = 128,389,230,308.16/381,703.20 - Step 6: Final answer
x = 336,358.80
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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.