Finding the Fourth Proportional to 354,948.99, 490,347.80 and 307,119.30
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Solution
The fourth proportional to 354,948.99, 490,347.80 and 307,119.30 is: 424,273.00
Step by Step Solution
- Step 1: Write the proportion equation
354,948.99 : 490,347.80 = 307,119.30 : x - Step 2: Convert to fraction form
354,948.99/490,347.80 = 307,119.30/x - Step 3: Cross multiply
354,948.99x = 490,347.80 × 307,119.30 - Step 4: Simplify right side
354,948.99x = 150,595,271,556.94 - Step 5: Solve for x
x = 150,595,271,556.94/354,948.99 - Step 6: Final answer
x = 424,273.00
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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.