Finding the Fourth Proportional to 212,071.60, 318,090.84 and 93,746.80
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Solution
The fourth proportional to 212,071.60, 318,090.84 and 93,746.80 is: 140,612.88
Step by Step Solution
- Step 1: Write the proportion equation
212,071.60 : 318,090.84 = 93,746.80 : x - Step 2: Convert to fraction form
212,071.60/318,090.84 = 93,746.80/x - Step 3: Cross multiply
212,071.60x = 318,090.84 × 93,746.80 - Step 4: Simplify right side
212,071.60x = 29,819,998,359.31 - Step 5: Solve for x
x = 29,819,998,359.31/212,071.60 - Step 6: Final answer
x = 140,612.88
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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.