Finding the Fourth Proportional to 155,138.20, 232,707.30 and 147,921.10
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Solution
The fourth proportional to 155,138.20, 232,707.30 and 147,921.10 is: 221,881.65
Step by Step Solution
- Step 1: Write the proportion equation
155,138.20 : 232,707.30 = 147,921.10 : x - Step 2: Convert to fraction form
155,138.20/232,707.30 = 147,921.10/x - Step 3: Cross multiply
155,138.20x = 232,707.30 × 147,921.10 - Step 4: Simplify right side
155,138.20x = 34,422,319,794.03 - Step 5: Solve for x
x = 34,422,319,794.03/155,138.20 - Step 6: Final answer
x = 221,881.65
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1.5x scale
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.