Finding the Fourth Proportional to 316,235.60, 474,350.76 and 129,115.84
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Solution
The fourth proportional to 316,235.60, 474,350.76 and 129,115.84 is: 193,672.68
Step by Step Solution
- Step 1: Write the proportion equation
316,235.60 : 474,350.76 = 129,115.84 : x - Step 2: Convert to fraction form
316,235.60/474,350.76 = 129,115.84/x - Step 3: Cross multiply
316,235.60x = 474,350.76 × 129,115.84 - Step 4: Simplify right side
316,235.60x = 61,246,196,832.04 - Step 5: Solve for x
x = 61,246,196,832.04/316,235.60 - Step 6: Final answer
x = 193,672.68
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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.