Finding the Fourth Proportional to 312,203.04, 430,840.11 and 168,963.06
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Solution
The fourth proportional to 312,203.04, 430,840.11 and 168,963.06 is: 233,168.98
Step by Step Solution
- Step 1: Write the proportion equation
312,203.04 : 430,840.11 = 168,963.06 : x - Step 2: Convert to fraction form
312,203.04/430,840.11 = 168,963.06/x - Step 3: Cross multiply
312,203.04x = 430,840.11 × 168,963.06 - Step 4: Simplify right side
312,203.04x = 72,796,063,356.34 - Step 5: Solve for x
x = 72,796,063,356.34/312,203.04 - Step 6: Final answer
x = 233,168.98
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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.