Finding the Fourth Proportional to 406,029.20, 609,130.20 and 125,574.80
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Solution
The fourth proportional to 406,029.20, 609,130.20 and 125,574.80 is: 188,388.92
Step by Step Solution
- Step 1: Write the proportion equation
406,029.20 : 609,130.20 = 125,574.80 : x - Step 2: Convert to fraction form
406,029.20/609,130.20 = 125,574.80/x - Step 3: Cross multiply
406,029.20x = 609,130.20 × 125,574.80 - Step 4: Simplify right side
406,029.20x = 76,491,403,038.96 - Step 5: Solve for x
x = 76,491,403,038.96/406,029.20 - Step 6: Final answer
x = 188,388.92
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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.