Finding the Fourth Proportional to 316,075.23, 474,107.85 and 79,418.07
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Solution
The fourth proportional to 316,075.23, 474,107.85 and 79,418.07 is: 119,125.85
Step by Step Solution
- Step 1: Write the proportion equation
316,075.23 : 474,107.85 = 79,418.07 : x - Step 2: Convert to fraction form
316,075.23/474,107.85 = 79,418.07/x - Step 3: Cross multiply
316,075.23x = 474,107.85 × 79,418.07 - Step 4: Simplify right side
316,075.23x = 37,652,730,418.85 - Step 5: Solve for x
x = 37,652,730,418.85/316,075.23 - Step 6: Final answer
x = 119,125.85
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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.