Finding the Fourth Proportional to 199,318.12, 299,027.70 and 66,199.07
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Solution
The fourth proportional to 199,318.12, 299,027.70 and 66,199.07 is: 99,315.39
Step by Step Solution
- Step 1: Write the proportion equation
199,318.12 : 299,027.70 = 66,199.07 : x - Step 2: Convert to fraction form
199,318.12/299,027.70 = 66,199.07/x - Step 3: Cross multiply
199,318.12x = 299,027.70 × 66,199.07 - Step 4: Simplify right side
199,318.12x = 19,795,356,391.81 - Step 5: Solve for x
x = 19,795,356,391.81/199,318.12 - Step 6: Final answer
x = 99,315.39
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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.