Finding the Fourth Proportional to 386,579.44, 533,506.26 and 216,824.50
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Solution
The fourth proportional to 386,579.44, 533,506.26 and 216,824.50 is: 299,232.75
Step by Step Solution
- Step 1: Write the proportion equation
386,579.44 : 533,506.26 = 216,824.50 : x - Step 2: Convert to fraction form
386,579.44/533,506.26 = 216,824.50/x - Step 3: Cross multiply
386,579.44x = 533,506.26 × 216,824.50 - Step 4: Simplify right side
386,579.44x = 115,677,228,071.37 - Step 5: Solve for x
x = 115,677,228,071.37/386,579.44 - Step 6: Final answer
x = 299,232.75
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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.