Finding the Fourth Proportional to 389,056.08, 536,886.66 and 216,979.26
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Solution
The fourth proportional to 389,056.08, 536,886.66 and 216,979.26 is: 299,425.39
Step by Step Solution
- Step 1: Write the proportion equation
389,056.08 : 536,886.66 = 216,979.26 : x - Step 2: Convert to fraction form
389,056.08/536,886.66 = 216,979.26/x - Step 3: Cross multiply
389,056.08x = 536,886.66 × 216,979.26 - Step 4: Simplify right side
389,056.08x = 116,493,270,190.67 - Step 5: Solve for x
x = 116,493,270,190.67/389,056.08 - Step 6: Final answer
x = 299,425.39
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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.