Finding the Fourth Proportional to 390,256.80, 585,260.64 and 123,954.99
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Solution
The fourth proportional to 390,256.80, 585,260.64 and 123,954.99 is: 185,892.92
Step by Step Solution
- Step 1: Write the proportion equation
390,256.80 : 585,260.64 = 123,954.99 : x - Step 2: Convert to fraction form
390,256.80/585,260.64 = 123,954.99/x - Step 3: Cross multiply
390,256.80x = 585,260.64 × 123,954.99 - Step 4: Simplify right side
390,256.80x = 72,545,976,778.59 - Step 5: Solve for x
x = 72,545,976,778.59/390,256.80 - Step 6: Final answer
x = 185,892.92
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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.