Finding the Fourth Proportional to 399,155.99, 550,830.74 and 227,069.91
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Solution
The fourth proportional to 399,155.99, 550,830.74 and 227,069.91 is: 313,353.90
Step by Step Solution
- Step 1: Write the proportion equation
399,155.99 : 550,830.74 = 227,069.91 : x - Step 2: Convert to fraction form
399,155.99/550,830.74 = 227,069.91/x - Step 3: Cross multiply
399,155.99x = 550,830.74 × 227,069.91 - Step 4: Simplify right side
399,155.99x = 125,077,085,421.68 - Step 5: Solve for x
x = 125,077,085,421.68/399,155.99 - Step 6: Final answer
x = 313,353.90
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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.