Finding the Fourth Proportional to 211,178.01, 316,871.10 and 98,865.84
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Solution
The fourth proportional to 211,178.01, 316,871.10 and 98,865.84 is: 148,347.49
Step by Step Solution
- Step 1: Write the proportion equation
211,178.01 : 316,871.10 = 98,865.84 : x - Step 2: Convert to fraction form
211,178.01/316,871.10 = 98,865.84/x - Step 3: Cross multiply
211,178.01x = 316,871.10 × 98,865.84 - Step 4: Simplify right side
211,178.01x = 31,327,727,473.22 - Step 5: Solve for x
x = 31,327,727,473.22/211,178.01 - Step 6: Final answer
x = 148,347.49
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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.