Finding the Fourth Proportional to 390,786.24, 585,710.64 and 201,336.96
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Solution
The fourth proportional to 390,786.24, 585,710.64 and 201,336.96 is: 301,763.95
Step by Step Solution
- Step 1: Write the proportion equation
390,786.24 : 585,710.64 = 201,336.96 : x - Step 2: Convert to fraction form
390,786.24/585,710.64 = 201,336.96/x - Step 3: Cross multiply
390,786.24x = 585,710.64 × 201,336.96 - Step 4: Simplify right side
390,786.24x = 117,925,199,697.25 - Step 5: Solve for x
x = 117,925,199,697.25/390,786.24 - Step 6: Final answer
x = 301,763.95
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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.