Finding the Fourth Proportional to 309,657.35, 464,485.12 and 85,017.99
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Solution
The fourth proportional to 309,657.35, 464,485.12 and 85,017.99 is: 127,526.74
Step by Step Solution
- Step 1: Write the proportion equation
309,657.35 : 464,485.12 = 85,017.99 : x - Step 2: Convert to fraction form
309,657.35/464,485.12 = 85,017.99/x - Step 3: Cross multiply
309,657.35x = 464,485.12 × 85,017.99 - Step 4: Simplify right side
309,657.35x = 39,489,591,287.31 - Step 5: Solve for x
x = 39,489,591,287.31/309,657.35 - Step 6: Final answer
x = 127,526.74
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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.