Finding the Fourth Proportional to 299,237.76, 449,021.88 and 121,869.63
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Solution
The fourth proportional to 299,237.76, 449,021.88 and 121,869.63 is: 182,871.74
Step by Step Solution
- Step 1: Write the proportion equation
299,237.76 : 449,021.88 = 121,869.63 : x - Step 2: Convert to fraction form
299,237.76/449,021.88 = 121,869.63/x - Step 3: Cross multiply
299,237.76x = 449,021.88 × 121,869.63 - Step 4: Simplify right side
299,237.76x = 54,722,130,377.50 - Step 5: Solve for x
x = 54,722,130,377.50/299,237.76 - Step 6: Final answer
x = 182,871.74
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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.