Finding the Fourth Proportional to 199,506.96, 299,318.40 and 74,857.68
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Solution
The fourth proportional to 199,506.96, 299,318.40 and 74,857.68 is: 112,308.27
Step by Step Solution
- Step 1: Write the proportion equation
199,506.96 : 299,318.40 = 74,857.68 : x - Step 2: Convert to fraction form
199,506.96/299,318.40 = 74,857.68/x - Step 3: Cross multiply
199,506.96x = 299,318.40 × 74,857.68 - Step 4: Simplify right side
199,506.96x = 22,406,281,005.31 - Step 5: Solve for x
x = 22,406,281,005.31/199,506.96 - Step 6: Final answer
x = 112,308.27
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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.