Finding the Fourth Proportional to 348,311.68, 480,722.64 and 212,424.48
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Solution
The fourth proportional to 348,311.68, 480,722.64 and 212,424.48 is: 293,177.81
Step by Step Solution
- Step 1: Write the proportion equation
348,311.68 : 480,722.64 = 212,424.48 : x - Step 2: Convert to fraction form
348,311.68/480,722.64 = 212,424.48/x - Step 3: Cross multiply
348,311.68x = 480,722.64 × 212,424.48 - Step 4: Simplify right side
348,311.68x = 102,117,256,826.23 - Step 5: Solve for x
x = 102,117,256,826.23/348,311.68 - Step 6: Final answer
x = 293,177.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.