Finding the Fourth Proportional to 155,720.28, 214,776.36 and 134,247.18
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Solution
The fourth proportional to 155,720.28, 214,776.36 and 134,247.18 is: 185,159.70
Step by Step Solution
- Step 1: Write the proportion equation
155,720.28 : 214,776.36 = 134,247.18 : x - Step 2: Convert to fraction form
155,720.28/214,776.36 = 134,247.18/x - Step 3: Cross multiply
155,720.28x = 214,776.36 × 134,247.18 - Step 4: Simplify right side
155,720.28x = 28,833,120,660.66 - Step 5: Solve for x
x = 28,833,120,660.66/155,720.28 - Step 6: Final answer
x = 185,159.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.