Finding the Fourth Proportional to 316,936.09, 437,177.50 and 258,877.18
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Solution
The fourth proportional to 316,936.09, 437,177.50 and 258,877.18 is: 357,091.80
Step by Step Solution
- Step 1: Write the proportion equation
316,936.09 : 437,177.50 = 258,877.18 : x - Step 2: Convert to fraction form
316,936.09/437,177.50 = 258,877.18/x - Step 3: Cross multiply
316,936.09x = 437,177.50 × 258,877.18 - Step 4: Simplify right side
316,936.09x = 113,175,278,359.45 - Step 5: Solve for x
x = 113,175,278,359.45/316,936.09 - Step 6: Final answer
x = 357,091.80
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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.