Finding the Fourth Proportional to 455,289.02, 628,299.77 and 251,340.20
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Solution
The fourth proportional to 455,289.02, 628,299.77 and 251,340.20 is: 346,849.99
Step by Step Solution
- Step 1: Write the proportion equation
455,289.02 : 628,299.77 = 251,340.20 : x - Step 2: Convert to fraction form
455,289.02/628,299.77 = 251,340.20/x - Step 3: Cross multiply
455,289.02x = 628,299.77 × 251,340.20 - Step 4: Simplify right side
455,289.02x = 157,916,989,851.75 - Step 5: Solve for x
x = 157,916,989,851.75/455,289.02 - Step 6: Final answer
x = 346,849.99
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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.