Finding the Fourth Proportional to 391,265.68, 586,898.52 and 213,675.80
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Solution
The fourth proportional to 391,265.68, 586,898.52 and 213,675.80 is: 320,513.70
Step by Step Solution
- Step 1: Write the proportion equation
391,265.68 : 586,898.52 = 213,675.80 : x - Step 2: Convert to fraction form
391,265.68/586,898.52 = 213,675.80/x - Step 3: Cross multiply
391,265.68x = 586,898.52 × 213,675.80 - Step 4: Simplify right side
391,265.68x = 125,406,010,779.82 - Step 5: Solve for x
x = 125,406,010,779.82/391,265.68 - Step 6: Final answer
x = 320,513.70
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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.