Finding the Fourth Proportional to 389,459.30, 583,697.55 and 197,381.99
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Solution
The fourth proportional to 389,459.30, 583,697.55 and 197,381.99 is: 295,823.94
Step by Step Solution
- Step 1: Write the proportion equation
389,459.30 : 583,697.55 = 197,381.99 : x - Step 2: Convert to fraction form
389,459.30/583,697.55 = 197,381.99/x - Step 3: Cross multiply
389,459.30x = 583,697.55 × 197,381.99 - Step 4: Simplify right side
389,459.30x = 115,211,382,869.49 - Step 5: Solve for x
x = 115,211,382,869.49/389,459.30 - Step 6: Final answer
x = 295,823.94
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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.