Finding the Fourth Proportional to 300,029.59, 413,328.99 and 209,220.49
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Solution
The fourth proportional to 300,029.59, 413,328.99 and 209,220.49 is: 288,227.88
Step by Step Solution
- Step 1: Write the proportion equation
300,029.59 : 413,328.99 = 209,220.49 : x - Step 2: Convert to fraction form
300,029.59/413,328.99 = 209,220.49/x - Step 3: Cross multiply
300,029.59x = 413,328.99 × 209,220.49 - Step 4: Simplify right side
300,029.59x = 86,476,893,819.01 - Step 5: Solve for x
x = 86,476,893,819.01/300,029.59 - Step 6: Final answer
x = 288,227.88
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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.