Finding the Fourth Proportional to 288,214.52, 431,742.47 and 143,684.19
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Solution
The fourth proportional to 288,214.52, 431,742.47 and 143,684.19 is: 215,237.48
Step by Step Solution
- Step 1: Write the proportion equation
288,214.52 : 431,742.47 = 143,684.19 : x - Step 2: Convert to fraction form
288,214.52/431,742.47 = 143,684.19/x - Step 3: Cross multiply
288,214.52x = 431,742.47 × 143,684.19 - Step 4: Simplify right side
288,214.52x = 62,034,566,372.13 - Step 5: Solve for x
x = 62,034,566,372.13/288,214.52 - Step 6: Final answer
x = 215,237.48
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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.