Finding the Fourth Proportional to 155,153.20, 232,729.80 and 147,936.10
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Solution
The fourth proportional to 155,153.20, 232,729.80 and 147,936.10 is: 221,904.15
Step by Step Solution
- Step 1: Write the proportion equation
155,153.20 : 232,729.80 = 147,936.10 : x - Step 2: Convert to fraction form
155,153.20/232,729.80 = 147,936.10/x - Step 3: Cross multiply
155,153.20x = 232,729.80 × 147,936.10 - Step 4: Simplify right side
155,153.20x = 34,429,138,965.78 - Step 5: Solve for x
x = 34,429,138,965.78/155,153.20 - Step 6: Final answer
x = 221,904.15
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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.