Finding the Fourth Proportional to 389,345.50, 537,297.60 and 210,497.50
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Solution
The fourth proportional to 389,345.50, 537,297.60 and 210,497.50 is: 290,486.99
Step by Step Solution
- Step 1: Write the proportion equation
389,345.50 : 537,297.60 = 210,497.50 : x - Step 2: Convert to fraction form
389,345.50/537,297.60 = 210,497.50/x - Step 3: Cross multiply
389,345.50x = 537,297.60 × 210,497.50 - Step 4: Simplify right side
389,345.50x = 113,099,801,556 - Step 5: Solve for x
x = 113,099,801,556/389,345.50 - Step 6: Final answer
x = 290,486.99
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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.