Finding the Fourth Proportional to 439,257.59, 658,934.81 and 139,668.09
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Solution
The fourth proportional to 439,257.59, 658,934.81 and 139,668.09 is: 209,517.53
Step by Step Solution
- Step 1: Write the proportion equation
439,257.59 : 658,934.81 = 139,668.09 : x - Step 2: Convert to fraction form
439,257.59/658,934.81 = 139,668.09/x - Step 3: Cross multiply
439,257.59x = 658,934.81 × 139,668.09 - Step 4: Simplify right side
439,257.59x = 92,032,166,347.21 - Step 5: Solve for x
x = 92,032,166,347.21/439,257.59 - Step 6: Final answer
x = 209,517.53
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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.