Finding the Fourth Proportional to 386,935.05, 533,962.86 and 214,844.07
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Solution
The fourth proportional to 386,935.05, 533,962.86 and 214,844.07 is: 296,480.65
Step by Step Solution
- Step 1: Write the proportion equation
386,935.05 : 533,962.86 = 214,844.07 : x - Step 2: Convert to fraction form
386,935.05/533,962.86 = 214,844.07/x - Step 3: Cross multiply
386,935.05x = 533,962.86 × 214,844.07 - Step 4: Simplify right side
386,935.05x = 114,718,754,071.24 - Step 5: Solve for x
x = 114,718,754,071.24/386,935.05 - Step 6: Final answer
x = 296,480.65
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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.