Finding the Fourth Proportional to 149,117.47, 223,648.42 and 47,917.28
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Solution
The fourth proportional to 149,117.47, 223,648.42 and 47,917.28 is: 71,866.99
Step by Step Solution
- Step 1: Write the proportion equation
149,117.47 : 223,648.42 = 47,917.28 : x - Step 2: Convert to fraction form
149,117.47/223,648.42 = 47,917.28/x - Step 3: Cross multiply
149,117.47x = 223,648.42 × 47,917.28 - Step 4: Simplify right side
149,117.47x = 10,716,623,962.70 - Step 5: Solve for x
x = 10,716,623,962.70/149,117.47 - Step 6: Final answer
x = 71,866.99
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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.