Finding the Fourth Proportional to 298,605.70, 447,908.55 and 132,393.70
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Solution
The fourth proportional to 298,605.70, 447,908.55 and 132,393.70 is: 198,590.55
Step by Step Solution
- Step 1: Write the proportion equation
298,605.70 : 447,908.55 = 132,393.70 : x - Step 2: Convert to fraction form
298,605.70/447,908.55 = 132,393.70/x - Step 3: Cross multiply
298,605.70x = 447,908.55 × 132,393.70 - Step 4: Simplify right side
298,605.70x = 59,300,270,196.14 - Step 5: Solve for x
x = 59,300,270,196.14/298,605.70 - Step 6: Final answer
x = 198,590.55
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1.5x scale
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.