Finding the Fourth Proportional to 423,421.75, 635,257.39 and 170,572.13
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Solution
The fourth proportional to 423,421.75, 635,257.39 and 170,572.13 is: 255,908.45
Step by Step Solution
- Step 1: Write the proportion equation
423,421.75 : 635,257.39 = 170,572.13 : x - Step 2: Convert to fraction form
423,421.75/635,257.39 = 170,572.13/x - Step 3: Cross multiply
423,421.75x = 635,257.39 × 170,572.13 - Step 4: Simplify right side
423,421.75x = 108,357,202,934.25 - Step 5: Solve for x
x = 108,357,202,934.25/423,421.75 - Step 6: Final answer
x = 255,908.45
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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.