Finding the Fourth Proportional to 309,102.18, 426,707.11 and 207,194.22
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Solution
The fourth proportional to 309,102.18, 426,707.11 and 207,194.22 is: 286,025.95
Step by Step Solution
- Step 1: Write the proportion equation
309,102.18 : 426,707.11 = 207,194.22 : x - Step 2: Convert to fraction form
309,102.18/426,707.11 = 207,194.22/x - Step 3: Cross multiply
309,102.18x = 426,707.11 × 207,194.22 - Step 4: Simplify right side
309,102.18x = 88,411,243,655.40 - Step 5: Solve for x
x = 88,411,243,655.40/309,102.18 - Step 6: Final answer
x = 286,025.95
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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.