Finding the Fourth Proportional to 310,199.66, 465,331.84 and 85,560.13
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Solution
The fourth proportional to 310,199.66, 465,331.84 and 85,560.13 is: 128,349.12
Step by Step Solution
- Step 1: Write the proportion equation
310,199.66 : 465,331.84 = 85,560.13 : x - Step 2: Convert to fraction form
310,199.66/465,331.84 = 85,560.13/x - Step 3: Cross multiply
310,199.66x = 465,331.84 × 85,560.13 - Step 4: Simplify right side
310,199.66x = 39,813,853,091.30 - Step 5: Solve for x
x = 39,813,853,091.30/310,199.66 - Step 6: Final answer
x = 128,349.12
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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.