Finding the Fourth Proportional to 461,330.10, 691,995.15 and 145,883.70
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Solution
The fourth proportional to 461,330.10, 691,995.15 and 145,883.70 is: 218,825.55
Step by Step Solution
- Step 1: Write the proportion equation
461,330.10 : 691,995.15 = 145,883.70 : x - Step 2: Convert to fraction form
461,330.10/691,995.15 = 145,883.70/x - Step 3: Cross multiply
461,330.10x = 691,995.15 × 145,883.70 - Step 4: Simplify right side
461,330.10x = 100,950,812,864.06 - Step 5: Solve for x
x = 100,950,812,864.06/461,330.10 - Step 6: Final answer
x = 218,825.55
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Similar ratio
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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.