Finding the Fourth Proportional to 316,284.44, 474,373.80 and 138,743.78
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Solution
The fourth proportional to 316,284.44, 474,373.80 and 138,743.78 is: 208,092.48
Step by Step Solution
- Step 1: Write the proportion equation
316,284.44 : 474,373.80 = 138,743.78 : x - Step 2: Convert to fraction form
316,284.44/474,373.80 = 138,743.78/x - Step 3: Cross multiply
316,284.44x = 474,373.80 × 138,743.78 - Step 4: Simplify right side
316,284.44x = 65,816,411,773.10 - Step 5: Solve for x
x = 65,816,411,773.10/316,284.44 - Step 6: Final answer
x = 208,092.48
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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.