Finding the Fourth Proportional to 384,357.48, 530,634.61 and 255,470.68
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Solution
The fourth proportional to 384,357.48, 530,634.61 and 255,470.68 is: 352,696.62
Step by Step Solution
- Step 1: Write the proportion equation
384,357.48 : 530,634.61 = 255,470.68 : x - Step 2: Convert to fraction form
384,357.48/530,634.61 = 255,470.68/x - Step 3: Cross multiply
384,357.48x = 530,634.61 × 255,470.68 - Step 4: Simplify right side
384,357.48x = 135,561,584,648.24 - Step 5: Solve for x
x = 135,561,584,648.24/384,357.48 - Step 6: Final answer
x = 352,696.62
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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.