Finding the Fourth Proportional to 147,497.60, 221,278.80 and 47,640.80
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Solution
The fourth proportional to 147,497.60, 221,278.80 and 47,640.80 is: 71,471.66
Step by Step Solution
- Step 1: Write the proportion equation
147,497.60 : 221,278.80 = 47,640.80 : x - Step 2: Convert to fraction form
147,497.60/221,278.80 = 47,640.80/x - Step 3: Cross multiply
147,497.60x = 221,278.80 × 47,640.80 - Step 4: Simplify right side
147,497.60x = 10,541,899,055.04 - Step 5: Solve for x
x = 10,541,899,055.04/147,497.60 - Step 6: Final answer
x = 71,471.66
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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.