Finding the Fourth Proportional to 641,261.80, 961,892.70 and 247,277.80
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Solution
The fourth proportional to 641,261.80, 961,892.70 and 247,277.80 is: 370,916.70
Step by Step Solution
- Step 1: Write the proportion equation
641,261.80 : 961,892.70 = 247,277.80 : x - Step 2: Convert to fraction form
641,261.80/961,892.70 = 247,277.80/x - Step 3: Cross multiply
641,261.80x = 961,892.70 × 247,277.80 - Step 4: Simplify right side
641,261.80x = 237,854,710,692.06 - Step 5: Solve for x
x = 237,854,710,692.06/641,261.80 - Step 6: Final answer
x = 370,916.70
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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.