Finding the Fourth Proportional to 257,646.69, 385,859.16 and 204,166.71
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Solution
The fourth proportional to 257,646.69, 385,859.16 and 204,166.71 is: 305,765.99
Step by Step Solution
- Step 1: Write the proportion equation
257,646.69 : 385,859.16 = 204,166.71 : x - Step 2: Convert to fraction form
257,646.69/385,859.16 = 204,166.71/x - Step 3: Cross multiply
257,646.69x = 385,859.16 × 204,166.71 - Step 4: Simplify right side
257,646.69x = 78,779,595,220.56 - Step 5: Solve for x
x = 78,779,595,220.56/257,646.69 - Step 6: Final answer
x = 305,765.99
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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.