Finding the Fourth Proportional to 211,395.31, 317,098.74 and 61,631.98
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Solution
The fourth proportional to 211,395.31, 317,098.74 and 61,631.98 is: 92,449.66
Step by Step Solution
- Step 1: Write the proportion equation
211,395.31 : 317,098.74 = 61,631.98 : x - Step 2: Convert to fraction form
211,395.31/317,098.74 = 61,631.98/x - Step 3: Cross multiply
211,395.31x = 317,098.74 × 61,631.98 - Step 4: Simplify right side
211,395.31x = 19,543,423,994.45 - Step 5: Solve for x
x = 19,543,423,994.45/211,395.31 - Step 6: Final answer
x = 92,449.66
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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.