Finding the Fourth Proportional to 371,310.39, 511,490.03 and 316,683.99
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Solution
The fourth proportional to 371,310.39, 511,490.03 and 316,683.99 is: 436,240.69
Step by Step Solution
- Step 1: Write the proportion equation
371,310.39 : 511,490.03 = 316,683.99 : x - Step 2: Convert to fraction form
371,310.39/511,490.03 = 316,683.99/x - Step 3: Cross multiply
371,310.39x = 511,490.03 × 316,683.99 - Step 4: Simplify right side
371,310.39x = 161,980,701,962.20 - Step 5: Solve for x
x = 161,980,701,962.20/371,310.39 - Step 6: Final answer
x = 436,240.69
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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.