Finding the Fourth Proportional to 318,283.69, 439,221.63 and 175,029.79
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Solution
The fourth proportional to 318,283.69, 439,221.63 and 175,029.79 is: 241,535.69
Step by Step Solution
- Step 1: Write the proportion equation
318,283.69 : 439,221.63 = 175,029.79 : x - Step 2: Convert to fraction form
318,283.69/439,221.63 = 175,029.79/x - Step 3: Cross multiply
318,283.69x = 439,221.63 × 175,029.79 - Step 4: Simplify right side
318,283.69x = 76,876,869,662.36 - Step 5: Solve for x
x = 76,876,869,662.36/318,283.69 - Step 6: Final answer
x = 241,535.69
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1.5x scale
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.