Finding the Fourth Proportional to 299,549.95, 412,886.77 and 212,364.79
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Solution
The fourth proportional to 299,549.95, 412,886.77 and 212,364.79 is: 292,714.49
Step by Step Solution
- Step 1: Write the proportion equation
299,549.95 : 412,886.77 = 212,364.79 : x - Step 2: Convert to fraction form
299,549.95/412,886.77 = 212,364.79/x - Step 3: Cross multiply
299,549.95x = 412,886.77 × 212,364.79 - Step 4: Simplify right side
299,549.95x = 87,682,612,204.83 - Step 5: Solve for x
x = 87,682,612,204.83/299,549.95 - Step 6: Final answer
x = 292,714.49
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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.