Finding the Fourth Proportional to 339,860.97, 509,758.45 and 103,205.70
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Solution
The fourth proportional to 339,860.97, 509,758.45 and 103,205.70 is: 154,798.53
Step by Step Solution
- Step 1: Write the proportion equation
339,860.97 : 509,758.45 = 103,205.70 : x - Step 2: Convert to fraction form
339,860.97/509,758.45 = 103,205.70/x - Step 3: Cross multiply
339,860.97x = 509,758.45 × 103,205.70 - Step 4: Simplify right side
339,860.97x = 52,609,977,663.17 - Step 5: Solve for x
x = 52,609,977,663.17/339,860.97 - Step 6: Final answer
x = 154,798.53
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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.