Finding the Fourth Proportional to 312,197.02, 430,831.88 and 168,957.07
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Solution
The fourth proportional to 312,197.02, 430,831.88 and 168,957.07 is: 233,160.75
Step by Step Solution
- Step 1: Write the proportion equation
312,197.02 : 430,831.88 = 168,957.07 : x - Step 2: Convert to fraction form
312,197.02/430,831.88 = 168,957.07/x - Step 3: Cross multiply
312,197.02x = 430,831.88 × 168,957.07 - Step 4: Simplify right side
312,197.02x = 72,792,090,819.12 - Step 5: Solve for x
x = 72,792,090,819.12/312,197.02 - Step 6: Final answer
x = 233,160.75
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1.5x scale
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.