Finding the Fourth Proportional to 210,728.99, 316,027.88 and 70,454.81
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Solution
The fourth proportional to 210,728.99, 316,027.88 and 70,454.81 is: 105,660.28
Step by Step Solution
- Step 1: Write the proportion equation
210,728.99 : 316,027.88 = 70,454.81 : x - Step 2: Convert to fraction form
210,728.99/316,027.88 = 70,454.81/x - Step 3: Cross multiply
210,728.99x = 316,027.88 × 70,454.81 - Step 4: Simplify right side
210,728.99x = 22,265,684,942.10 - Step 5: Solve for x
x = 22,265,684,942.10/210,728.99 - Step 6: Final answer
x = 105,660.28
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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.