Finding the Fourth Proportional to 212,064.48, 318,143.70 and 69,904.08
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Solution
The fourth proportional to 212,064.48, 318,143.70 and 69,904.08 is: 104,871.61
Step by Step Solution
- Step 1: Write the proportion equation
212,064.48 : 318,143.70 = 69,904.08 : x - Step 2: Convert to fraction form
212,064.48/318,143.70 = 69,904.08/x - Step 3: Cross multiply
212,064.48x = 318,143.70 × 69,904.08 - Step 4: Simplify right side
212,064.48x = 22,239,542,656.30 - Step 5: Solve for x
x = 22,239,542,656.30/212,064.48 - Step 6: Final answer
x = 104,871.61
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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.