Finding the Fourth Proportional to 406,031.20, 609,133.20 and 125,576.80
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Solution
The fourth proportional to 406,031.20, 609,133.20 and 125,576.80 is: 188,391.92
Step by Step Solution
- Step 1: Write the proportion equation
406,031.20 : 609,133.20 = 125,576.80 : x - Step 2: Convert to fraction form
406,031.20/609,133.20 = 125,576.80/x - Step 3: Cross multiply
406,031.20x = 609,133.20 × 125,576.80 - Step 4: Simplify right side
406,031.20x = 76,492,998,029.76 - Step 5: Solve for x
x = 76,492,998,029.76/406,031.20 - Step 6: Final answer
x = 188,391.92
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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.