Finding the Fourth Proportional to 145,235.40, 217,982.70 and 125,536.20
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Solution
The fourth proportional to 145,235.40, 217,982.70 and 125,536.20 is: 188,416.32
Step by Step Solution
- Step 1: Write the proportion equation
145,235.40 : 217,982.70 = 125,536.20 : x - Step 2: Convert to fraction form
145,235.40/217,982.70 = 125,536.20/x - Step 3: Cross multiply
145,235.40x = 217,982.70 × 125,536.20 - Step 4: Simplify right side
145,235.40x = 27,364,719,823.74 - Step 5: Solve for x
x = 27,364,719,823.74/145,235.40 - Step 6: Final answer
x = 188,416.32
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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.