Finding the Fourth Proportional to 310,306.76, 428,223.73 and 176,170.76
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Solution
The fourth proportional to 310,306.76, 428,223.73 and 176,170.76 is: 243,115.88
Step by Step Solution
- Step 1: Write the proportion equation
310,306.76 : 428,223.73 = 176,170.76 : x - Step 2: Convert to fraction form
310,306.76/428,223.73 = 176,170.76/x - Step 3: Cross multiply
310,306.76x = 428,223.73 × 176,170.76 - Step 4: Simplify right side
310,306.76x = 75,440,499,964.13 - Step 5: Solve for x
x = 75,440,499,964.13/310,306.76 - Step 6: Final answer
x = 243,115.88
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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.