Finding the Fourth Proportional to 390,774.82, 585,734.62 and 201,246.66
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Solution
The fourth proportional to 390,774.82, 585,734.62 and 201,246.66 is: 301,649.77
Step by Step Solution
- Step 1: Write the proportion equation
390,774.82 : 585,734.62 = 201,246.66 : x - Step 2: Convert to fraction form
390,774.82/585,734.62 = 201,246.66/x - Step 3: Cross multiply
390,774.82x = 585,734.62 × 201,246.66 - Step 4: Simplify right side
390,774.82x = 117,877,135,921.37 - Step 5: Solve for x
x = 117,877,135,921.37/390,774.82 - Step 6: Final answer
x = 301,649.77
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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.