Finding the Fourth Proportional to 384,133.05, 530,132.99 and 212,084.19
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Solution
The fourth proportional to 384,133.05, 530,132.99 and 212,084.19 is: 292,692.40
Step by Step Solution
- Step 1: Write the proportion equation
384,133.05 : 530,132.99 = 212,084.19 : x - Step 2: Convert to fraction form
384,133.05/530,132.99 = 212,084.19/x - Step 3: Cross multiply
384,133.05x = 530,132.99 × 212,084.19 - Step 4: Simplify right side
384,133.05x = 112,432,824,716.01 - Step 5: Solve for x
x = 112,432,824,716.01/384,133.05 - Step 6: Final answer
x = 292,692.40
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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.