Finding the Fourth Proportional to 309,956.18, 464,873.04 and 85,258.62
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Solution
The fourth proportional to 309,956.18, 464,873.04 and 85,258.62 is: 127,871.09
Step by Step Solution
- Step 1: Write the proportion equation
309,956.18 : 464,873.04 = 85,258.62 : x - Step 2: Convert to fraction form
309,956.18/464,873.04 = 85,258.62/x - Step 3: Cross multiply
309,956.18x = 464,873.04 × 85,258.62 - Step 4: Simplify right side
309,956.18x = 39,634,433,865.60 - Step 5: Solve for x
x = 39,634,433,865.60/309,956.18 - Step 6: Final answer
x = 127,871.09
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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.