Finding the Fourth Proportional to 199,306.10, 299,074.35 and 74,659.70
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Solution
The fourth proportional to 199,306.10, 299,074.35 and 74,659.70 is: 112,032.70
Step by Step Solution
- Step 1: Write the proportion equation
199,306.10 : 299,074.35 = 74,659.70 : x - Step 2: Convert to fraction form
199,306.10/299,074.35 = 74,659.70/x - Step 3: Cross multiply
199,306.10x = 299,074.35 × 74,659.70 - Step 4: Simplify right side
199,306.10x = 22,328,801,248.70 - Step 5: Solve for x
x = 22,328,801,248.70/199,306.10 - Step 6: Final answer
x = 112,032.70
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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.