Finding the Fourth Proportional to 427,792.09, 642,318.95 and 238,622.06
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Solution
The fourth proportional to 427,792.09, 642,318.95 and 238,622.06 is: 358,284.96
Step by Step Solution
- Step 1: Write the proportion equation
427,792.09 : 642,318.95 = 238,622.06 : x - Step 2: Convert to fraction form
427,792.09/642,318.95 = 238,622.06/x - Step 3: Cross multiply
427,792.09x = 642,318.95 × 238,622.06 - Step 4: Simplify right side
427,792.09x = 153,271,471,026.04 - Step 5: Solve for x
x = 153,271,471,026.04/427,792.09 - Step 6: Final answer
x = 358,284.96
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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.