Finding the Fourth Proportional to 639,818.08, 959,405.36 and 213,202.84
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Solution
The fourth proportional to 639,818.08, 959,405.36 and 213,202.84 is: 319,697.04
Step by Step Solution
- Step 1: Write the proportion equation
639,818.08 : 959,405.36 = 213,202.84 : x - Step 2: Convert to fraction form
639,818.08/959,405.36 = 213,202.84/x - Step 3: Cross multiply
639,818.08x = 959,405.36 × 213,202.84 - Step 4: Simplify right side
639,818.08x = 204,547,947,463.22 - Step 5: Solve for x
x = 204,547,947,463.22/639,818.08 - Step 6: Final answer
x = 319,697.04
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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.