Finding the Fourth Proportional to 316,515.51, 474,774.11 and 79,858.19
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Solution
The fourth proportional to 316,515.51, 474,774.11 and 79,858.19 is: 119,787.49
Step by Step Solution
- Step 1: Write the proportion equation
316,515.51 : 474,774.11 = 79,858.19 : x - Step 2: Convert to fraction form
316,515.51/474,774.11 = 79,858.19/x - Step 3: Cross multiply
316,515.51x = 474,774.11 × 79,858.19 - Step 4: Simplify right side
316,515.51x = 37,914,598,310.30 - Step 5: Solve for x
x = 37,914,598,310.30/316,515.51 - Step 6: Final answer
x = 119,787.49
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1.5x scale
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.