Finding the Fourth Proportional to 389,281.23, 537,207.17 and 219,514.23
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Solution
The fourth proportional to 389,281.23, 537,207.17 and 219,514.23 is: 302,929.11
Step by Step Solution
- Step 1: Write the proportion equation
389,281.23 : 537,207.17 = 219,514.23 : x - Step 2: Convert to fraction form
389,281.23/537,207.17 = 219,514.23/x - Step 3: Cross multiply
389,281.23x = 537,207.17 × 219,514.23 - Step 4: Simplify right side
389,281.23x = 117,924,617,175.46 - Step 5: Solve for x
x = 117,924,617,175.46/389,281.23 - Step 6: Final answer
x = 302,929.11
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.