Finding the Fourth Proportional to 386,373.68, 533,195.32 and 216,607.84
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Solution
The fourth proportional to 386,373.68, 533,195.32 and 216,607.84 is: 298,918.62
Step by Step Solution
- Step 1: Write the proportion equation
386,373.68 : 533,195.32 = 216,607.84 : x - Step 2: Convert to fraction form
386,373.68/533,195.32 = 216,607.84/x - Step 3: Cross multiply
386,373.68x = 533,195.32 × 216,607.84 - Step 4: Simplify right side
386,373.68x = 115,494,286,563.31 - Step 5: Solve for x
x = 115,494,286,563.31/386,373.68 - Step 6: Final answer
x = 298,918.62
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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.