Finding the Fourth Proportional to 319,899.12, 479,701.80 and 186,820.08
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Solution
The fourth proportional to 319,899.12, 479,701.80 and 186,820.08 is: 280,144.34
Step by Step Solution
- Step 1: Write the proportion equation
319,899.12 : 479,701.80 = 186,820.08 : x - Step 2: Convert to fraction form
319,899.12/479,701.80 = 186,820.08/x - Step 3: Cross multiply
319,899.12x = 479,701.80 × 186,820.08 - Step 4: Simplify right side
319,899.12x = 89,617,928,652.14 - Step 5: Solve for x
x = 89,617,928,652.14/319,899.12 - Step 6: Final answer
x = 280,144.34
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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.