Finding the Fourth Proportional to 316,121.54, 474,431.58 and 138,750.98
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Solution
The fourth proportional to 316,121.54, 474,431.58 and 138,750.98 is: 208,235.87
Step by Step Solution
- Step 1: Write the proportion equation
316,121.54 : 474,431.58 = 138,750.98 : x - Step 2: Convert to fraction form
316,121.54/474,431.58 = 138,750.98/x - Step 3: Cross multiply
316,121.54x = 474,431.58 × 138,750.98 - Step 4: Simplify right side
316,121.54x = 65,827,844,295.79 - Step 5: Solve for x
x = 65,827,844,295.79/316,121.54 - Step 6: Final answer
x = 208,235.87
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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.